General General 7 min read

Sin City’s secrets

Fascinating facts about Las Vegas you won't find on travel guides

Image: Paul IJsendoorn

A man once sold every single thing he owned, flew to Las Vegas, and bet the whole lot on a single spin of the roulette wheel. Do you think he won? There are 600 miles of concrete flood tunnels under Sin City—can you estimate how many people live there? Most of the profits of the whole city come from one single game; could you guess which one it is? Read on to find all the answers to these stunning facts about Las Vegas, Nevada.

1
The man who sold everything he owned and bet it all on one spin

Image: Pavel Danilyuk

In 2004, a 32-year-old British man named Ashley Revell walked into the Plaza Hotel and Casino in Las Vegas and placed every dollar he had in the world on a single spin of the roulette wheel.

In the months before, Revell had sold his house in Kent, his BMW, his Rolex watch, his golf clubs, his electronics, his furniture, and every piece of clothing he owned. The grand total of his liquidated possessions came to $135,300 . He pushed the entire stack of chips onto red as the ball was already spinning. It landed on Red 7.

Revell walked away with $270,600, exactly double what he had come in with. He tipped the croupier $600 on the way out. The whole thing was filmed by Sky One for a reality mini-series called Double or Nothing .

2
Beneath the casinos, an estimated 1,500 people live underground

Image: Stephen Leonardi

Below the glittering hotels and neon lights of the Las Vegas Strip runs a network of concrete flood drainage tunnels stretching roughly 600 miles beneath the city. Built in the 1990s to manage flash flooding in the Nevada desert, these tunnels have become an unofficial home for hundreds of the city’s unhoused residents.

It is estimated that between 1,200 and 1,500 people live there . Some residents have constructed makeshift shelters from plywood and salvaged metal deep inside the tunnels, occasionally just yards below the casino floors above them.

The tunnels pose serious dangers: flooding risk during desert rainstorms, extreme heat, and high rates of substance abuse. A network of nonprofits, outreach teams, and government agencies coordinates aid by providing the residents with essentials and offering them long-term case management, like treatment and housing placement.

3
Las Vegas has a literal black book of people banned for life

Image: BehindTheTmuna

Since 1960, the Nevada Gaming Control Board has maintained what it officially calls the List of Excluded Persons, better known as the Black Book. The original publication was a black-covered booklet held together with Scotch tape, listing eleven people deemed to have "notorious or unsavory reputations."

Most of the early entries were organized crime figures: Chicago outfit boss Sam Giancana; enforcer Anthony "Tony the Ant" Spilotro, whose violent exploits inspired Joe Pesci’s character in the film Casino ; and nine other mob associates. Anyone whose name appears on the list is permanently banned from entering any licensed gaming establishment in the state of Nevada.

Violating the ban is a gross misdemeanor under Nevada law. As of 2026, there are 37 names on the list. No one has ever successfully appealed their removal.

4
Strange casino rules: no clocks, no windows, no soft dice

Image: Elizabeth Ferreira

Las Vegas casinos are designed to keep gamblers at the tables as long as possible. Clocks are banned to distract players from the passing of time. Windows are eliminated so that they cannot tell whether it is noon or 3 a.m.

What’s more, Nevada law governs even the dice. The Nevada Gaming Control Board requires casino dice to be perfectly transparent so that no hidden weights can be concealed inside . Each die must be precision-manufactured to within 1/10,000th of an inch, with razor-sharp corners and edges showing no rounding whatsoever. They are inspected regularly and, in high-stakes games, replaced every eight hours of play to ensure consistent rolls.

5
The famous Las Vegas Strip is not actually in Las Vegas

Image: David Lusvardi

The stretch of Las Vegas Boulevard South that the world knows as the Strip does not lie within the city limits of Las Vegas. This is the area that’s home to Caesars Palace, the Bellagio, MGM Grand, the Venetian, Mandalay Bay, and dozens of other iconic venues.

Technically, it falls within an unincorporated community called Paradise , which is governed by Clark County rather than the city of Las Vegas. Paradise was deliberately established in 1950, when casino owners moved to avoid Las Vegas city taxes and regulations while continuing to trade on the city’s name and benefit from its infrastructure.

The city of Las Vegas actually begins further north along the boulevard, near the Stratosphere. Paradise covers approximately 54 square miles and has a residential population of around 220,000 people, which means it’s one of the largest and most densely populated unincorporated communities in the United States.

6
The Luxor’s sky beam is the most powerful artificial light on earth

Image: Pavel Špindler, CC BY 3.0, via Wikimedia Commons

Rising straight up from the apex of the black pyramid-shaped Luxor Hotel and Casino, the Luxor Sky Beam has been one of the most recognizable sights in Las Vegas since the hotel opened in October 1993. It is, by any measure, the most powerful artificial light beam on the planet. The beam is produced by 39 individual xenon lamps, each with 7,000 watts and roughly the size of a washing machine, focused through computer-designed curved mirrors into a single concentrated column.

Together, they generate an estimated 42.3 billion candlepower. On a clear night, airline pilots have reported seeing the beam from as far as 250 miles away. The total operating cost, confirmed by Luxor engineer John Lichtsteiner, is $51 per hour, of which $20 is electricity. That adds up to $480 a day only for lighting the signature beam each night —or $175,200 a year.

7
Las Vegas is home to the tallest observation tower in the US

Image: Dave Morgan

Standing 1,149 feet above the Las Vegas valley, the Strat Tower, officially rebranded from the Stratosphere in 2020, is the tallest freestanding observation tower in the US and the second-tallest in the entire Western Hemisphere, surpassed only by the CN Tower in Toronto at 1,815 feet. It is also the tallest building in Nevada and the tallest structure west of the Mississippi River.

At the top, the Strat offers four outdoor thrill rides, including one that dangles riders 64 feet beyond the edge of the building on a mechanical arm, over 900 feet above the ground.

8
Slot machines account for around 60% of all casino revenue

Image: Elizabeth Ferreira

Walk into any Las Vegas casino, and the first thing that surrounds you (and the loudest) is the rows of slot machines that line nearly every available wall and corridor. That layout is not a coincidence.

It is estimated that slot machines consistently generate approximately 60 to 65 percent of all casino gaming revenue in Nevada. There is roughly one operating slot machine for every eight residents of Las Vegas. Nevada law requires that video slot machines pay out a minimum average of 75 percent, though Strip machines in practice typically return 87 to 97 percent.

Casinos place the most visible, most tempting machines near entrances, elevators, and high-foot-traffic corridors , a placement strategy that has been studied and refined over decades. Despite the rise of poker rooms and sports betting in recent years, slot machines have remained the single largest source of gaming income in Las Vegas without interruption for more than half a century.

9
The gambling capital of the world does not sell lottery tickets

Image: Obi

Nevada is one of only two states in the entire United States that have no state lottery, the other being Utah. You cannot legally walk into a convenience store and buy a $2 scratch-off ticket.

The reason is straightforward and has nothing to do with moral opposition. Nevada’s gaming industry has lobbied persistently and successfully against a state lottery since gambling was first legalized in 1931, on the grounds that a government-run lottery would directly compete with casino revenues.

10
FedEx was saved from bankruptcy by a Las Vegas blackjack table

Image: Joshua Santos

In 1971, FedEx, then called Federal Express, was days away from collapse. Founder Frederick W. Smith had built the company on the revolutionary idea of overnight package delivery using a central hub-and-spoke air network, but the business was not working.

The company had roughly $5,000 left in its operating account. It was not enough. Facing what appeared to be the end, Smith flew to Las Vegas and sat down at a blackjack table. He gambled the company’s last $5,000 and turned it into $27,000, which was just enough to cover that week’s fuel costs and keep the planes in the air. The breathing room bought by that blackjack session gave Smith enough time to secure additional financing. Today, FedEx employs more than 500,000 people worldwide and is valued at over $60 billion.

History History 4 min read

Weird America

Prepare to be shocked: these 10 American mysteries remain unsolved

Image: Susan Q Yin

Everyone loves a good mystery, and American history is teaming with fascinating examples. From vanished aviators to secret codes and missing treasures, these real stories have puzzled experts for decades. Some are dark, others simply strange, but all remain open chapters in our past. Take a look at the following 10 unsolved mysteries. Which ones did you already know?

1
The disappearance of Amelia Earhart (1937)

Image: Job Vermeulen

The first entry on our list is dedicated to a world-renowned flight pioneer, Amelia Earhart, who vanished while attempting to become the first woman to fly around the globe , leaving behind only fragments of her plane and endless speculation. Radio failure, poor visibility, and fuel issues are speculated to be contributing factors to her disappearance.

Even with modern technology and repeated searches, no one has ever found definitive proof of what happened to Amelia or her aircraft.

2
The D.B. Cooper hijacking (1971)

Image: Christine Trefalt

In 1971, Dan Cooper, a seemingly quiet man, boarded a plane in Portland, Oregon, which he promptly hijacked when the aircraft was in the air. He demanded $200,000 over the radio.

The plane landed in Seattle, where authorities met his demands. Cooper released all 36 passengers in exchange for the cash and parachutes. He then ordered the remaining crew to fly toward Mexico City at a low altitude and slow speed. Somewhere over southwest Washington, he lowered the aircraft's aft stairs and jumped into the freezing night, never to be seen again.

3
The disappearance of Jimmy Hoffa (1975)

Image: Pavel Inozemtsev

The powerful union leader left a Detroit restaurant in 1975 and simply vanished . Witnesses last saw him standing by his car in the restaurant’s parking lot, and investigators believe he was coaxed into a car by people he recognized, thinking the meeting location had changed. He was never seen again. Searches in fields, lakes, and construction sites turned up nothing. To this day, it remains one of the most famous unsolved mysteries in American history.

Rumors range from mob connections to government cover-ups, but none have been proven. Ever since then, Hoffa’s name has become shorthand for anything that disappears without a trace.

4
The Yuba County Five (1978)

Image: Sebastian Unrau

In what came to be known as "America’s Dyatlov Pass", five friends vanished after attending a basketball game in the town of Chico, California. Months later, the bodies of four members of the group were found in the mountains under mysterious conditions .

The remaining member of the original party was never located, and their strange route into deep snow remains unexplained.

5
The Sodder Children (1975)

Image: Marita Kavelashvili

A fire destroyed the Sodder family home in West Virginia, but five children were never found among the remains of the house. Because of physical inconsistencies at the scene and strange sightings afterward, the family always believed they survived.

Over the years, strange sightings and letters fueled hope and confusion alike, but no real evidence has ever been found. Because of these clues, the Sodders never held a funeral and instead famously erected a billboard on Route 16, offering a reward for information and keeping the case in the public eye for decades.

6
The Springfield Three (1992)

Image: David Holgerson

On a warm summer night in 1992, Sherrill Sherrill Levitt, her daughter Suzie, and Suzie's friend Stacy vanished from their home in Springfield, Missouri, leaving behind their cars, purses, and even the family dog .

Friends arriving the next morning found the house empty but unlocked. Despite thousands of leads, no evidence or remains have surfaced. The case remains one of the most talked-about disappearances in small-town America to this day.

7
The Gardner Museum Heist (1990)

Image: Dannie Jing

Back in 1990, two men dressed as police officers entered Boston’s Isabella Stewart Gardner Museum and stole 13 works of art worth over $500 million .

No piece has ever been recovered. Empty frames still hang on the museum walls, a quiet tribute to one of history’s most expensive thefts.

8
The Max Headroom broadcast hijack (1987)

Image: Rubenz Arizta

1980s television viewers might remember Max Headroom as a somewhat clumsy computer AI TV personality and ad spokesperson. In 1987, Chicago viewers were startled when a strange figure wearing a Max Headroom mask interrupted TV broadcasts with odd messages .

The stunt lasted only seconds, but no one was ever caught or identified. It remains one of the strangest unsolved moments in television history.

9
The Great Lakes ghost ships

Image: Kyle Larivee

Over the years, s everal ships have vanished or been found adrift on the Great Lakes , their crews gone without explanation. Cold weather, sudden storms, and superstition all play roles in the stories, but some cases defy logic. The vast inland seas are simply too big to be accessible with the current technology.

Among the most notable unsolved cases, we can mention Le Griffon, a ship that vanished during her maiden voyage in 1679, the SS Banockburn, known as the "Flying Dutchman of Lake Superior," disappeared during a storm in 1902, or the SS Chicora, a luxury steamer lost in a violent winter gale while carrying a cargo of flour, in 1895.

10
The Dulce Base Mystery

Image: Pict4life

Beginning in the 1970s, a constant array of strange lights, unmarked aircraft, and talk of secret tunnels near the town of Dulce has fueled decades of conspiracy theories in this otherwise quiet area to this day.

While skeptics blame radar tests or imagination, locals still report odd sightings in the desert skies.

History History 7 min read

The surprising life of FDR

Why did he work late into the night? 10 surprising facts about FDR

Image: Bibliothèque nationale de France, Public domain, via Wikimedia Commons

You probably know Franklin Delano Roosevelt as the president who guided America through the Great Depression and World War II, launched the New Deal, and helped create Social Security. But that's only part of the story. This was also the president who served hot dogs to the British royal family, became the first commander in chief to fly while in office, relied on lucky charms, and never lost his love of practical jokes. He was related to more presidents than you might realize and had a few surprising quirks that rarely make it into history books. Here are 10 fascinating facts about FDR that they didn't teach you in school.

1
He served hot dogs to British Royalty

Image: Harris & Ewing, photographer, Public domain, via Wikimedia Commons

In 1939, for the first time ever, a sitting US president hosted the reigning British monarchs on American soil. And it wasn’t just a formal state meeting; it was a picnic.

On June 11 of that year, President Franklin D. Roosevelt and First Lady Eleanor Roosevelt welcomed King George VI and Queen Elizabeth to their home in Hyde Park, New York. Instead of an elaborate diplomatic banquet, the menu was unexpectedly simple and quintessentially American: hot dogs and beer. According to FDR, the queen politely tried hers with a knife and fork, while the king ate several with his hands and seemed to enjoy them. Behind the scenes, the visit was more than symbolic, yet folksy hospitality. With war already looming in Europe, both sides were quietly strengthening ties that would soon become crucial during WWII.

2
The first sitting president to fly on a plane

Image: National Museum of the U.S. Navy, Public domain, via Wikimedia Commons

While FDR made history in many ways, one of his lesser-known firsts took place thousands of feet above the ground.

On January 11, 1943, in the middle of WWII, he became the first sitting US president to fly in an airplane. At a time when air travel was still far from routine, he embarked on a secret 7,000-mile journey from Miami, Florida, to Bathurst, Gambia, before continuing to Casablanca, Morocco. The trip wasn't taken for leisure; German U-boats had made Atlantic sea travel risky, so Roosevelt crossed the ocean aboard a Boeing 314 flying boat known as the Dixie Clipper . His destination was the Casablanca Conference, where he met with British Prime Minister Winston Churchill to discuss wartime strategy.

3
Highly superstitious

Image: Franklin D. Roosevelt Presidential Library and Museum, Public domain, via Wikimedia Commons

Are you the type to knock on wood to avoid bad luck? Or would you walk under a ladder without a second thought? If you're in the first group, you would have fit right in with Franklin D. Roosevelt.

FDR famously declared that "the only thing we have to fear is fear itself," but he also had a surprisingly superstitious side. According to people who worked with him in the White House, Roosevelt kept his desk and personal items arranged in a precise order that he believed brought good luck. He also disliked the number 13: family members and aides recalled that he avoided hosting dinners with 13 guests and was reluctant to begin important trips on Friday the 13th. He even had a lucky charm, a brown felt fedora that he wore during all four of his presidential campaigns. We can't say it didn't work.

4
He loved practical jokes

Image: Underwood & Underwood, Public domain, via Wikimedia Commons

With all his responsibilities, talents, and interests, FDR still found time to joke around.

According to his biographers, Roosevelt loved practical jokes and kept his playful streak throughout his life, even pulling pranks well into his presidency. In the tense world of politics, that sense of humor became one of his trademarks. He enjoyed classic gags, including putting bubbling powder in drinking glasses to surprise White House guests, or slipping completely made-up words into conversations and then watching with delight as his staff scrambled to check the dictionary. Friends and aides also noted that he had a unique ability to laugh off rumors, criticism, and political attacks that might have rattled other leaders.

5
Peculiar work schedules

Image: Franklin D. Roosevelt Presidential Library and Museum, Public domain, via Wikimedia Commons

Jokes didn't distract FDR from his work. If anything, they helped him cope, and he certainly had plenty of work to do. In fact, Roosevelt was known for his unusual working hours.

Unlike many other presidents who were early risers, he often worked late into the night and typically didn't begin his day until around 9 am. During WWII, while overseeing a global conflict, he regularly spent his evenings reviewing reports, making decisions, and meeting with advisers long after most Americans had gone to bed. What makes this even more impressive is that he maintained this pace as his health steadily declined. Doctors urged him to slow down and limit his workload, but Roosevelt frequently ignored that advice. For a wartime commander-in-chief, there was always one more decision to make.

6
He appointed the first female cabinet member

Image: Los Angeles Daily News, CC BY 4.0, via Wikimedia Commons

Among his many historic firsts, FDR was the inaugural POTUS to appoint a woman to a Cabinet position, a decision that reflected both his political instincts and his willingness to recognize talent and intelligence where he found it.

In 1933, he chose labor advocate Frances Perkins as Secretary of Labor. It turned out to be one of the most consequential appointments of his presidency. Perkins served from 1933 to 1945, making her the longest-serving Secretary of Labor in American history. And as if that weren't enough, she became one of the chief designers of the New Deal.

7
11 presidential relatives

Image: Franklin D. Roosevelt Presidential Library and Museum, Public domain, via Wikimedia Commons

Most people know that Franklin D. Roosevelt and Theodore Roosevelt were related: the 32nd president was a distant cousin of the 26th. But few realize just how extensive FDR’s presidential family tree really was.

In fact, genealogists have traced Franklin Roosevelt’s family connections to at least 11 US presidents. FDR was not only related to Theodore Roosevelt and his own wife, Eleanor Roosevelt (his fifth cousin once removed), but also to an impressive number of other commanders in chief. Among those connected to him by blood were George Washington (with whom he shared ancestors from English nobility and the early settlers of Virginia), John Adams, John Quincy Adams, James Madison, and William Harrison. Through marriage and extended family ties, he was also related to Ulysses S. Grant, Benjamin Harrison, Zachary Taylor, Martin Van Buren, and William Howard Taft.

8
His illness may not have been polio

Image: Leon Perskie, CC BY 2.0, via Wikimedia Commons

As is well known, FDR was struck by a serious illness in 1921 at age 39 that left him permanently unable to walk unaided. But during his presidency, he worked hard to keep public attention focused on his leadership rather than on his body, so while Americans understood he had been diagnosed with polio, few knew about the paralysis.

To stand at public events, Roosevelt relied on heavy steel leg braces and canes that helped him project confidence and strength throughout his presidency. However, although doctors at the time diagnosed him with polio, some modern medical researchers have suggested that his symptoms may have been more consistent with Guillain-Barré syndrome (GBS), a rare autoimmune disorder.

9
He didn’t graduate from law school

Image: National Archives and Records Administration, Public domain, via Wikimedia Commons

FDR was a bright and curious man who threw himself into subjects that fascinated him, but when something failed to hold his interest, he wasn't afraid to move on.

After earning a History degree from Harvard University in 1903, he enrolled at Columbia Law School, but he found that he simply didn't enjoy it. According to the Miller Center at the University of Virginia, Roosevelt showed little enthusiasm for the legal profession, and maybe that’s why he never achieved a Law degree. Even so, he passed the New York bar exam and began practicing after it, but the experiment lasted only a few years. Then, in 1910, an opportunity came along that interested him far more: local Democrats in New York asked him to run for the state Senate. Roosevelt eagerly accepted, and his political career was underway.

10
Expert in many fields

Politics and wartime strategy weren't FDR's only talents. Long before he entered the White House, he acquired a deep interest in nature.

Growing up in Dutchess County, New York, Roosevelt developed a fascination with birds that went far beyond a childhood hobby. By age 11, he was already learning taxidermy, eventually becoming a skilled self-taught naturalist and bird expert. Over the years, he identified and cataloged roughly 300 bird species. His detailed field journals and collection of more than 300 Dutchess County specimens are still considered some of the most complete records of local bird life from that era.

Explore more American facts

Choose your favorite category!

General
General

As American as apple pie—the very best America has to offer!

Culture
Culture

Delve into the astounding richness of American lore.

Geography
Geography

Hop in and explore vast and diverse American landscapes.

History
History

Discover the key moments that shaped the United States.