1

Daiquiri

Is it possible that our favorite vacation cocktail was originally a "medicine"? Back in 1898, an American mining engineer named Jennings Cox was working in the village of Daiquiri, Cuba. He mixed local rum, lime, and sugar to keep his workers refreshed and to ward off yellow fever.

This drink migrated to the States, becoming popular during the 1940s and 1950s, and a favorite of Ernest Hemingway and President John F. Kennedy . While Hemingway famously drank daiquiris in Havana, JFK later helped make the cocktail fashionable in American political circles. Rum brands like Bacardi and Captain Morgan helped make the cocktail a summer favorite, and the original recipe started to vary among bars and vacation spots.

2

Hamburger

Did you know one famous hamburger origin story points to a small town in New York? According to the Menches family legend, brothers Frank and Charles Menches were selling pork sausage sandwiches at the 1885 Erie County Fair in Hamburg, New York, when they ran out of pork . A local butcher suggested ground beef instead. The brothers reportedly seasoned the beef with coffee, brown sugar, and other ingredients, then served it between bread with ketchup and sliced onions. The sandwich was said to be a hit, so they named it the "hamburger" after the town where the fair was held.

3

German Chocolate Cake

Don’t let the name fool you into thinking this recipe comes from overseas. This dessert was actually born in Dallas in 1957 when Mrs. George Clay sent the recipe to the local newspaper, the Dallas Morning News . The German part actually comes from Sam German, the man who developed the dark baking chocolate for Baker’s Chocolates Company back in the 1850s.

This cake quickly became a sensation at birthdays and other celebrations thanks to its coconut-pecan frosting. The confection eventually inspired similar cupcakes, brownies, and even an ice cream flavor.

4

Philly Cheesesteak

One of Philadelphia’s most famous foods started almost by accident. In 1930, Pat Olivieri was running a hot dog stand in South Philly when he decided to grill some chopped beef and place it inside an Italian roll for himself. A taxi driver nearby smelled it, asked for one too, and legend follows that the word spread quickly around the city .

Shortly after, melted cheese became part of the recipe —usually Cheez Whiz, provolone, or American cheese. Today, locals debate whether the best version is sold at Pat's King of Steaks or Geno's Steaks.

5

Hot Dog

Just like the hot dog itself has two main ingredients, its origin story also comes in two parts. Some people say the sausage came from Frankfurt, Germany, while others believe the wieners of Vienna, Austria, inspired it. Frankfurt even celebrated the sausage’s 500th anniversary in 1897 to strengthen its claim.

But how did the hot dog become an American favorite? Before the 1850s, people in New York usually ate frankfurters between two slices of bread. Around that time, Austrian baker Ignatz Frischman arrived near Coney Island, and he noticed how much the crowds loved the sandwiches. After opening his bakery, he created a long, soft roll made especially for the sausages, and street vendors quickly started using them .

6

S'mores

The first known recipe for the summertime classic appeared in a 1927 Girl Scout handbook, where campers were taught to roast marshmallows over a fire and sandwich them between graham crackers and chocolate.

Companies like Hershey's, Jet-Puffed, and Honey Maid helped turn s’mores into a must for campfire treats, and now, they can be made in ovens or microwaves with peanut butter or flavored chocolate.

7

Corn Dog

A hot dog dipped in cornmeal batter, placed on a stick, and deep-fried until golden brown. That is how a classic corn dog is made. During the late 1920s, one Minnesota family sold their version of the corn dog at the Oregon local fairs under the name "Pronto Pup" because they disliked the term "corn dog." Even so, "corn dog" became the most recognized name, especially after state fairs in Texas and the Midwest helped popularize it throughout the country.

They are staples at carnivals, baseball games, and amusement parks, and are usually adorned with mustard or ketchup . Also, newer versions use spicy sausages, cheese-filled batter, or mini bite-sized pieces for easy snacking.

8

Lobster Roll

One early story places its birth in a Connecticut restaurant during the 1920s, where warm lobster soaked in butter was served inside a toasted roll. Years later, Maine helped popularize a different version with cold lobster mixed with mayonnaise, and the debate between the two styles continues.

By the 1970s, lobster rolls had turned into a symbol of seaside vacations across the Northeast. People have them at seafood shacks, harbor towns, and summer festivals. Famous spots like Red's Eats became famous for lobster meat rolls, while others, such as Luke's Lobster, helped introduce the sandwich to the rest of the country.

9

Reuben Sandwich

The Reuben Sandwich has been part of a food debate for nearly a century. One version takes us to the 1920s, Omaha, Nebraska, where grocer Reuben Kulakofsky asked for a special sandwich during late-night poker games at a hotel . The other one says a New York deli owner was already serving something very similar around the same time.

No matter the truth, the sandwich was already appearing on menus by the 1930s with its mix of corned beef, Swiss cheese, sauerkraut, and Russian dressing on rye bread. It is a classic choice at American diners and Jewish-style delis.

10

Piña Colada

It first appeared in 1954 at the Caribe Hilton. Bartender "Monchito" Marrero, after trying different recipes, finally arrived at the rum, coconut, pineapple juice fusion we enjoy today.

Coco López and Malibu, both liquor brands, helped turn the drink into an easy, homemade one, enabling more flavors like strawberry, mango, or even banana. Also, as Caribbean vacations and cruise trips became popular during the second half of the 20th century, the piña colada started showing up at beach bars and resorts all over the country.

1

What are bills made of?

Unlike other currencies, dollar bills are not made of paper or plastic. U.S. dollar bills are made from a special fabric blend composed of 75% cotton and 25% linen. This mix makes the bills extremely durable and resistant, and they can be folded about 4000 times before tearing.

2

What bills are valid?

Any U.S. dollar bill that was legally printed is valid, no matter how old, as American currency does not have an expiration date. While some bills might not be accepted by businesses of foreign exchange services due to their condition or if they are a discontinued version of the bill, the bills themselves are still valid, and American banks will accept them, though they might take them out of circulation.

3

American leaders

Five bills have a depiction of an American president. The exceptions are the $10 bill, with Alexander Hamilton on the front, and the $100 bill, with Benjamin Franklin. The $1 bill, depicting George Washington, is extremely symbolic: several elements are repeated 13 times as a nod to the thirteen colonies, and it showcases the Bald Eagle and the Eye of Providence as a sign of God watching over America.

4

A change in size

Did you know that dollar bills used to be so big that they were nicknamed "horse blankets"? Original dollar bills were 7.4 × 3.1 inches. In 1929, the Treasury Department reduced the size of bills to 6.14 × 2.61 inches to reduce production costs and materials. Old bills, though still valid, are worth much more as collector items.

5

Uniformity

Besides their value and design, all dollar bills have the same size (6.14 × 2.61 inches), color, and weight (1 gram) , which sets American currency apart from other countries where bills of different values are differentiated by size, color, or both. Why doesn’t the U.S. implement differences among bills? The cost of adapting vending machines, bank drawers, and ATMs to new bill sizes would cost billions of dollars.

6

Hard to copy

Originally, dollars were not green, but black. As time passed, green ink was favored, as it was cheap and did not fade as much as black. The new color also prevented people from using black-and-white cameras to create counterfeit money. Currently, dollar bills are predominantly green, but newer versions also include extra colors, such as pink, orange, or purple.

7

A $100,000 bill?

Have you ever seen a $500 or 1,000 dollar bill? What about a $100,000? Up until 1945, the U.S. Treasury printed $500, $1,000, $5,000, $10,000, and $100,000 notes , in addition to the values currently in use. These higher-value notes were mainly intended for bank and government use, but were sought by criminals as they made it easier to hide large amounts of money. Even though they were officially discontinued in 1969, these notes are still valid, though rare, and they have a high worth as collector's items.

8

No numbers

Unlike bills, American coins have different sizes and colors related to their value. Originally, gold, silver, and copper were used for coins, but modern coins are made of copper, zinc, or nickel. Besides their size and design, the value of each coin is printed in letters, not in numbers , alongside depictions of American presidents.

9

Liberty for all (the coins)

By law, all American coins must include six specific details : the word ‘Liberty’, the name of our country, the national motto "In God We Trust", the oldest American motto "E Pluribus Unum", the value of the coin, and the year. Each coin also includes a mint mark that shows where it was made: "P" for Philadelphia, "D" for Denver, "S" for San Francisco, and "W" for West Point.

10

A global currency

The American dollar is one of the most powerful currencies in the world, acting as a backbone for international trade and finances. It is estimated that two-thirds of the physical dollars in circulation are outside American territory. Besides the U.S. and its territories, eight sovereign nations have the U.S. dollar as their official currency, with several more accepting it as legal tender.

1

There's an unexplained billion-year gap

Look closely at the canyon walls, and you'll notice something strange: a clean, sharp line where ancient rock simply stops, and a much younger layer begins directly above it.

This geological puzzle is called the "Great Unconformity," and it represents over a billion years of rock layers that are simply absent , as though that stretch of time never happened. In some spots, rock dated 1.8 billion years old sits directly beneath rock that is only 520 million years old. Where did the missing billion years go?

The leading theory involves the violent breakup of an ancient supercontinent, but scientists are still piecing it together.

2

During the Cold War, it hid a nuclear fallout shelter

During the Cuban Missile Crisis in 1962, the U.S. government converted part of the Grand Canyon Caverns into a fallout shelter. This dry cave system, more than 200 feet underground, was stocked with enough food and water to sustain 2,000 people. Naturally, it was never occupied, and the supplies were never used.

The caverns have since been transformed into a tourist attraction, with organized tours winding through the same underground chambers that were once intended as a refuge from nuclear war. You can even book a night's stay there.

3

The Federal Aviation Administration was founded after a crash over the canyon

In 1956, two commercial passenger planes collided in midair over the eastern Grand Canyon, killing all 128 people on board both crafts. Rescue teams struggled to reach the wreckage deep inside the canyon, and the extreme heat of the crash had caused the planes' aluminum to fuse with the bedrock. There were no survivors.

The disaster exposed a terrifying truth: the U.S. air traffic control system was dangerously outdated, relying on pilots' visual estimates and rough guesswork from controllers , with no way to separate fast-moving aircraft from slow ones, or instrument-flying planes from those navigating by sight. Congress responded by passing legislation that created both the Federal Aviation Administration (FAA) and the National Transportation Safety Board.

4

A hoax suggested that an Egyptian civilization had lived there

In 1909, the Arizona Gazette reported that an explorer named G. E. Kinkaid had discovered a vast underground citadel inside the canyon, filled with artifacts linked to ancient Egyptian civilization. He even claimed the expedition had been funded by the Smithsonian.

This story described hieroglyphics on the walls, mummies in the chambers, and relics pointing to a direct connection with the Egypt of the pharaohs. It was incredibly detailed, and it was, of course, a hoax. No evidence for any of Kinkaid's claims ever surfaced.

5

Fewer than 100 people have ever hiked its full length

Among the few people who have completed the through-hike of the Grand Canyon is Jen Hogan, the first woman to accomplish it, finishing her journey in 2021–2022.

It’s a full 800-mile length below the rim. The route involves extreme heat, flash floods, near-impassable areas, and stretches with no water or trail whatsoever. Around 60 or 70 people have reportedly accomplished it. This makes it one of the most exclusive feats on Earth.

6

The Grand Canyon's rocks predate dinosaurs entirely

Visitors scanning the canyon walls for fossils are often surprised to learn they won't find any dinosaur bones here. The rock layers of the Grand Canyon are simply older than dinosaurs. This fact alone can be shocking: staring at its walls means staring at marine fossils from as far back as 1.2 billion years ago. Some of its caves hold the remains of ancient mammals. The canyon is a window into a world that existed long before the dinosaurs, when the land that is now Arizona lay beneath a shallow sea.

7

The park is bigger than Rhode Island

Numbers alone rarely capture the Grand Canyon's scale, so here's a different approach. Rhode Island covers about 1,214 square miles, and the Grand Canyon National Park spans 1,904 square miles.

The canyon's depth exceeds four Empire State Buildings (which is 1,454 feet) stacked on top of one another. That’s 6,093 feet at its deepest point.

8

But it's not the deepest canyon on Earth

For all its grandeur, the Grand Canyon does not hold the depth record. Pictured above, the Yarlung Tsangpo Grand Canyon in Tibet, China, plunges to 17,567 feet, which is nearly three times deeper. Carved by the Yarlung Tsangpo River as it cuts through the eastern Himalayas, that canyon is so remote and extreme that it remained largely uncharted until the late 20th century.

9

It is home to a pink rattlesnake found nowhere else on Earth

The Grand Canyon Pink Rattlesnake has a pinkish-red coloring that matches the canyon's own distinctive rock walls so closely that it's nearly invisible. It is found nowhere else in the world. Officially classified as Crotalus oreganus abyssus , it has darker diamond-shaped markings along its back that deepen the camouflage further.

10

There's a village at the bottom: Supai Village

For over 1,000 years, the remote village of Supai has been home to the Havasupai Tribe, the People of the Blue-Green Waters. It is located an eight-mile hike from the rim, but sits roughly 3,000 feet deep inside the Grand Canyon.

The U.S. Department of Agriculture has called it the most remote community in the contiguous United States, and it has no automobiles and no road access. The only ways in are on foot, by mule, or by helicopter. It is also the only place in the United States where the postal service still delivers mail by mule train.