1

Arnold Schwarzenegger

Image: Tom Def

Let’s kick it off with someone everybody knows. In case the excessive use of consonants in his last name wasn’t enough of a clue, Arnold Schwarzenegger was born and raised in Austria, where he built a successful career in bodybuilding. After winning major bodybuilding titles, he moved to the U.S., where he continued competing and later transitioned into acting. He became a U.S. citizen in 1983 and went on to serve as Governor of California from 2003 to 2011.

2

Elizabeth Taylor

Image: Daniele Levis Pelusi

One of the brightest stars of 1950s Hollywood, Elizabeth Taylor is known for her unforgettable performances in classics such as Cleopatra , Cat on a Hot Tin Roof , and Who’s Afraid of Virginia Woolf? Born in London in 1932 to American parents from Arkansas, Taylor held dual British-American citizenship from birth. Although she was initially raised in the UK, her family returned to the U.S. when World War II broke out. There, she began what would become a triumphant acting career, earning her first starring role at age 12 in National Velvet .

3

Charlize Theron

Image: barendlotter

Born in Benoni, in what was then the Transvaal province of South Africa, Charlize Theron began her career as a model and later trained as a dancer. While trying (and failing) to get into the film industry, she got her breakthrough thanks to her not being American: she famously caught the attention of a talent agent while arguing with a bank teller who refused to cash her check because she was a foreigner. She became a U.S. citizen in 2007 and has retained her South African citizenship.

4

Liam Neeson

Image: K. Mitch Hodge

Liam Neeson was born and raised in Ballymena, Northern Ireland, and started his career as a theater performer in Belfast and Dublin. After being cast in a minor role in the film Excalibur (1981), he built a successful career in both the UK and the U.S. Neeson acquired American citizenship in 2009 and said he was inspired by the overwhelming support he received from Americans following the tragic death of his wife, Natasha Richardson.

5

Cary Grant

Image: thomas cook

One of the biggest stars of Hollywood’s Golden Age, Cary Grant was born Archibald Alec Leach in Bristol, England. He first came to the U.S. as a teenager in 1920 as part of a theater troupe, and eventually transitioned into film, becoming famous for his romantic comedies before expanding into other genres. In 1942, he became a U.S. citizen and legally changed his name to Cary Grant.

6

Maureen O’Hara

Image: Mike Fox

Maureen O’Hara might not have been born an American, but she earned her place in one of the most American film genres of all: the Western. Born Maureen FitzSimons in Dublin, Ireland, she got her first major role in Alfred Hitchcock’s Jamaica Inn (1939), where she was billed as Maureen O’Hara, a stage name chosen for her by the studio. She rose to stardom soon after with her leading role in John Ford’s How Green Was My Valley (1941), and went on to become iconic in Westerns and adventure films. She became a naturalized U.S. citizen in 1946.

7

Helen Mirren

Image: Hulki Okan Tabak

Ilyena Lydia Mironoff was born in the UK as part of an exiled Russian noble family who eventually changed their surname to Mirren. She started her career as a theater performer in the Royal Shakespeare Company, and went on to achieve major success in film and television. Though she became a U.S. citizen in 2017, she had considered herself American for a long time. In an interview, she revealed that witnessing the 9/11 attacks in New York City gave her an "epiphany" about where her allegiance lay, which helped prompt her decision to become a U.S. citizen.

8

Anthony Quinn

Image: Jorge Aguilar

Many people are surprised to learn that Anthony Quinn was not American-born. Originally named Manuel Antonio Rodolfo Quinn Oaxaca, he was born in Chihuahua, Mexico, to a Mexican mother of Indigenous heritage and an Irish immigrant father. After a short stint as a boxer, he began a successful acting career and became the first Mexican-born actor to win an Academy Award, ultimately winning two Oscars. He became a U.S. citizen in 1947.

9

Olivia de Havilland and Joan Fontaine

Image: Jeremy Yap

Famous actresses, rivals, and sisters Olivia de Havilland and Joan Fontaine were born in Tokyo, Japan, to British parents, making them British subjects from birth. Both were brought up in the United States after their mother moved the family to California. Their careers in Hollywood were marked by a well-publicized sibling rivalry: according to biographies, their mother favored Olivia and discouraged Joan from using the family name, prompting her to adopt the stage surname Fontaine .

Olivia de Havilland became a naturalized U.S. citizen in 1941, just months before the U.S. entered World War II, and she actively contributed to the war effort, including touring to support troops. Her sister Joan gained citizenship a few years later, in 1943.

10

Greta Garbo

Image: Sofia Sforza

Born in Stockholm, Sweden, as Greta Lovisa Gustafsson, Greta Garbo became one of the defining stars of Hollywood’s early Golden Age. After appearing in a supporting role in the Swedish film The Saga of Gösta Berling (1924), she caught the attention of Metro-Goldwyn-Mayer executives, who brought her to Hollywood to begin what became a legendary silent-film career, one that only grew stronger with the transition to sound. After nearly two decades in film, Garbo famously retired from acting in 1941 and later became a U.S. citizen in 1951.

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.