1

Marlon Brando vs. Frank Sinatra

Frank Sinatra and Marlon Brando are names that hardly go unnoticed anywhere in the world. These stars of music and cinema crossed paths during the filming of Guys and Dolls in 1955, and it didn’t take long for a clash of egos. Brando’s method-acting style often conflicted with Sinatra’s more traditional approach, while Sinatra saw Brando’s performance as pure pretension. Their very different ways of thinking and working led to a long-standing animosity that lasted for years and, according to some sources, included everything from insults to threats.

2

Betty White vs. Bea Arthur

It’s hard to believe that these two women, who played best friends on The Golden Girls (1985-1992), couldn’t stand each other in real life. Apparently, Bea Arthur, who was more reserved, was often irritated by Betty White’s cheerful, outgoing humor. According to people who worked on the set, the two actresses didn’t get along at all, but they remained totally professional, and we have to admit that, on this side of the screen, you’d never know it.

3

Joan Crawford vs. Bette Davis

Joan Crawford and Bette Davis were divas of Hollywood’s Golden Age, both highly successful and Oscar winners. Ironically, it was their similarities that led to one of the most famous feuds in the industry, as professional competition slowly turned into personal resentment. In 1962, they finally worked together on What Ever Happened to Baby Jane? , and according to reports, fights, insults, pranks, and even acts of sabotage were constant throughout filming.

4

Debbie Reynolds vs. Elizabeth Taylor

Love triangles don’t exist only in fiction. And that’s what happened between Debbie Reynolds and Elizabeth Taylor. The two were close friends before Elizabeth had an affair with Debbie’s husband, singer Eddie Fisher. The scandal ended Reynolds’ marriage in the late 1950s and dominated headlines and magazine covers.

Surprisingly, it didn’t end there. Years later, Reynolds reached out, and the two actresses reconciled. Their bond was sealed when they worked together on These Old Broads (2001), a comedy written by Carrie Fisher, one of the daughters Reynolds had with Eddie Fisher.

5

Johnny Carson vs. Joan Rivers

American late-night television wouldn’t be the same without Johnny Carson and Joan Rivers. Carson was the king of TV, hosting The Tonight Show for 30 years, while Rivers was a frequent guest host. Their friendship ended when Rivers accepted her own competing show on Fox. Carson reportedly never forgave her and banned her from The Tonight Show for the rest of his life.

6

Sylvester Stallone vs. Arnold Schwarzenegger

Sylvester Stallone and Arnold Schwarzenegger are undeniable icons of action cinema, which boomed in the 1980s and 1990s. But the battles weren’t just on screen; they spilled into real life. The two actors developed a long-running rivalry fueled by intense professional competition to be seen as the ultimate action star and land the biggest roles. They often criticized each other on TV and clashed at public events, but over the years, tensions eased, and these rivals eventually became close friends.

7

Madonna vs. Elton John

The music world is not immune to feuds. In fact, one of the most famous rivalries unfolded in pop music between two giants of the genre: Madonna and Elton John. The fight began in the early 2000s, when Elton publicly criticized the Queen of Pop, accusing her of lip-syncing. Although the tension lasted for years, there is good news: in 2025, the British singer apologized to Madonna, and the two reconciled, announcing it in a post on her Instagram.

8

Richard Gere vs. Sylvester Stallone

The Terminator wasn’t Stallone’s only rival. The star of Rocky also had a major feud with Richard Gere that nearly turned into a real fistfight. Tension began while filming The Lords of Flatbush (1974), when Stallone reportedly felt Gere was showing off in his role and openly criticized him. Things boiled over during a lunch break in a car, when Gere splashed mustard on Stallone, who reacted by elbowing him and throwing him out of the vehicle. The incident ultimately led to Gere being let go from the film.

9

Magic Johnson vs. Larry Bird

Two NBA superstars collided in the 1980s. We’re talking about Magic Johnson and Larry Bird, who had different playing styles and approaches to the game and were constantly compared by the press and the public. This intense on-court rivalry eventually jumped off the court, creating real personal tension between them. Over time, however, both stars lowered their guard, grew closer, and ultimately formed a strong friendship.

10

Sarah Jessica Parker vs. Kim Cattrall

Although Carrie and Samantha were best friends on Sex and the City , the actresses behind them didn’t share that bond in real life. The rivalry reportedly began during filming, as they never got along. Kim Cattrall openly criticized the pay gap between Sarah Jessica Parker and the rest of the cast, and these professional tensions gradually turned personal. Cattrall later stated, "We were never friends," and after the series ended, their relationship did not improve.

1

National Mall’s hidden tunnel (Washington, DC)

The National Mall landscape in Washington, DC, is so familiar that it’s hard to imagine anything hidden beneath it, but there is more going on below the surface than most visitors realize.

Beneath parts of the Mall, a network of underground tunnels connects buildings like the Smithsonian Institution Building, a.k.a "The Castle", with other Smithsonian facilities, including the National Museum of Natural History. They’re mainly used for utilities, secure staff access, and behind-the-scenes operations that keep the museums running smoothly.

2

Mount Rushmore’s secret chamber (Keystone, SD)

When you look at Mount Rushmore, the first thing you notice is the four faces of George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln, but there’s more than meets the eye. Hidden behind Lincoln’s head is a secret chamber known as the "Hall of Records," a place visitors have rarely ever seen. It was the idea of sculptor Gutzon Borglum, who imagined it as a grand room to hold important US documents and tell our story as a country. Construction began with that goal, but the project was never completed. Today, the chamber remains unfinished, but it's there, waiting to be visited someday.

3

The Las Vegas sign is in another city (technically, Paradise, NV)

Do you have the classic picture in front of the iconic "Welcome to Fabulous Las Vegas" sign? If you snapped it and then drove to another city, we hate to break it to you, but you weren’t in Las Vegas.

The famous sign, installed in 1959, actually sits a couple of miles outside the city limits. In fact, the sign and most of the Strip are technically located in the towns of Paradise and Winchester, unincorporated communities in Clark County, Nevada, not within Las Vegas itself. And that’s no accident: much of the Strip and its casinos were originally developed outside the city in the 1950s to avoid municipal taxes and regulations.

4

Fragments of the Antarctic ice sheets (Denver, CO)

Did you know that the Mile High City stores miles of ice from Greenland and Antarctica? Ok, but how?

At Denver’s National Ice Core Laboratory, part of the Federal Science Center, the ice is kept at around -32.8°F. Researchers study it not just to understand Antarctica itself, but also to inspect Earth’s history. Some of these blocks of ice are hundreds of thousands of years old, and from them, scientists can reconstruct ancient temperatures, track greenhouse gas levels, and even identify major volcanic eruptions preserved in the layers.

5

The hatch at the top of City Hall Tower (Philadelphia, PA)

Counting the statue of William Penn at its summit, the tower of Philadelphia City Hall rises about 548 feet, making it the tallest municipal building in the United States. But hidden high above the street, the statue conceals a little-known secret.

At its base is a small hatch, originally built to give workers access for maintenance. It offers an incredible vantage point over the city, but getting there isn’t easy. To reach it, you have to climb narrow stairways and walk through tight, elevated passageways. Would you dare give it a try?

6

A 112,544 square-foot underground bunker (White Sulphur Springs, WV)

The tense atmosphere and threats of the Cold War led to the construction of thousands of underground bunkers across the US. And one of the most impressive is right beneath the Greenbrier Resort in White Sulphur Springs, West Virginia.

Buried 720 feet into the hillside, this 112,544-square-foot bunker was created to shelter all 535 members of the US Congress in the event of a nuclear attack. Built between 1958 and 1961, it was sealed behind a 25-ton blast door, and it remained a protected secret for more than 30 years.

7

Catacombs underneath City Market (Indianapolis, IN)

In downtown Indianapolis, the City Market has been a gathering place since 1886, filled with local vendors, cafés, and shops. But there’s more to it than what you see above ground. Beneath the market lies a network known as the City Market’s "catacombs."

Despite the name, the reality isn't quite so macabre; they’re a series of brick archways that once supported Tomlinson Hall, a huge market building demolished in the mid-20th century. Today, this underground space remains as a hidden piece of the city’s past, but unlike many places on this list, it’s occasionally open for guided tours.

8

One of history's biggest art heists (Boston, MA)

We all know Boston as the "birthplace of the American Revolution," home to events like the Boston Massacre and the Boston Tea Party. But there’s another chapter of its history you don’t hear about as often.

Just over 30 years ago, Boston was the scene of one of the biggest art heists in history. In the early hours of March 18, 1990, two men disguised as police officers entered the Isabella Stewart Gardner Museum, overpowered the guards, and stole 13 invaluable works of art, including pieces by Vermeer, Degas, Rembrandt, and Manet. To this day, the case remains unsolved, and a multi-million-dollar reward is still offered for information.

9

One of the quietest places on Earth (Minneapolis, MN)

Where do you think the quietest places on Earth are? You might imagine remote landscapes far from civilization, but one of them is actually right in Minneapolis, Minnesota.

Inside Orfield Laboratories, there’s a room with no windows or natural light, an anechoic chamber that absorbs nearly all sound. That’s right: it blocks almost every noise, making the space even quieter than a vacuum. Visitors say the silence is so intense that you can hear your own heartbeat and even the faintest movements of your body. Simply incredible.

10

A strange law (Los Angeles, CA)

Why would a city actually pass an ordinance saying that licking toads is a bad idea? That’s Los Angeles, a place full of quirks, some charming, some downright strange. Even its laws can be unusual.

The Colorado River toad, found in parts of California, secretes chemicals that can have powerful psychoactive effects on humans. Because of the risks, both possession and use of this substance are illegal statewide. In 1994, cases occurred, including a teacher who was arrested for possessing the toad substance. But Los Angeles went a step further, passing an ordinance that specifically bans licking these amphibians. And let’s be honest, the poor toad probably doesn’t enjoy it either.

1

Philadelphia: Jawn

Meaning: used as a placeholder for a noun.

When in Rome, do as the Romans do. When in Philly, be aware that the word jawn can and will be used in every sentence, no matter if the jawn in question is a thing, person, event, or place. If it’s a noun, it can be jawn’ed.

2

New England: Grinder

Meaning: a sub sandwich.

Subs must be one of the most widely known American sandwiches, and rightfully so. Its possibilities when it comes to fillings are seemingly endless, no matter your personal tastes. But you must consider that not every sub is called a sub. If you are passing through New England and fancy a sandwich, looking for a grinder will get you there quicker.

3

Midwest: Schnockered/ Schnookered

Meaning: Schnockered: wasted/ Schnookered: scammed

Is there a connection between excessive alcohol consumption and being easy to deceive? Midwesterners apparently think so, because they use very similar terms for both situations. We tend to agree; nothing good can come from doing business while under the influence.

4

New York: Schlep

Meaning: a difficult task, to carry something with difficulty.

As far as hectic places go, New York seems to be leading the rankings. No wonder they have a dedicated slang repertoire for difficult situations. If you are planning on visiting the Big Apple, take it easy; you will most likely encounter a schlep.

5

Florida: No-see-ums

Meaning: tiny biting midges.

Ah, Florida! The land of cruises, alligators, and invisible attacking bugs. These welcoming critters are known for attacking at dawn and leaving itchy marks that will sting for days. They go by the government name of Ceratopogonidae, but the no-see-ums nickname seems more accurate.

6

Boston: Regular

Meaning: coffee with cream and sugar.

Forget about americanos, lattes, and espressos, a regular is the Boston way to go. Associated with a popular Dunkin’ order, it will come already creamed and sugared. Not advisable for diabetics and lactose intolerants.

7

Puerto Rico: A mi, plín!

Meaning: I don’t care.

Puerto Rican slang can be hard to decipher even if you speak some Spanish, but this makes it even more unique. This phrase —literally translated as ‘to me, plin’— is commonly used to express that something or someone is of no concern to you. What is a ‘plin’? We don’t really know, but to us, plin!

8

Pacific Northwest: The mountain is out

Meaning: there is good weather

Mount Rainier is one of the icons of Seattle and the Pacific Northwest, even though the stormy weather can often make it difficult to admire. On the days when the sky is clear and cloudless, this natural wonder "is out" and can be seen in its entirety. For the locals, the mountain being out has become synonymous with lovely weather and sunny skies.

9

Texas: Fixin’ to

Meaning: about to.

We are including this phrase as Texan slang, but you might hear it from Southerners of other states. What do they use it for? Not to talk about repairs, but to say they are about to do something or getting ready for something. Important: do not confuse it with ‘fixins’, a way to refer to side dishes or condiments.

10

Alaska: Sourdough

Meaning: a long-time resident.

Alaska is filled with natural wonders, but it has always been a tough place to live in, especially during the time of the pioneers. These brave people relied on a few food sources, one of them being sourdough starter to make bread and biscuits. In time, seasoned Alaskans came to be referred to as ‘sourdough’, as a way of honoring their resilience and love for the territory. Opposite to a ‘sourdough’, you can find a ‘cheechako’ or newcomer.

11

Utah: RM

Meaning: someone who returned from their missionary service.

Utah is known for many things, one of them being its high number of Church of Jesus Christ of Latter-day Saints members (commonly known as Mormons). Many members of the Church choose to serve as missionaries, an activity that can take them to a different state or even a different country for up to two years. Once they come back, they might be referred to as RM, or ‘returned missionary’.

12

Hawaii: Da kine

Meaning: placeholder for something.

If you are in Hawaii, you might notice locals using this phrase to refer to various things, similar to how other English speakers use ‘whatsit’ as a placeholder. A common phrase in Hawaiian Pidgin, ‘da kine’ can be used for objects, people, places, ideas, and much more.