1

Nate Thurmond

Image: Salah Regouane

In the 1960s and early ’70s, Nate Thurmond anchored the middle for the Golden State Warriors, outmuscling giants and grabbing rebounds as if the ball belonged only to him. Later, with the Cleveland Cavaliers, he became the kind of veteran every young team needs—steady, selfless, and always doing the dirty work that doesn’t make the headlines but wins the crowd’s respect. Both franchises retired his No. 42, a fitting tribute to a blue-collar superstar.

2

Pete Maravich

Image: daschorsch

Playing in the 1970s, Pete "Pistol Pete" Maravich starred for the Atlanta Hawks and later the New Orleans Jazz. His ball-handling and creativity—whirling passes, deep jumpers—looked like magic tricks that made crowds gasp. After a 10-year professional career and being named an All-Star five times, Atlanta retired his No. 44, and both the Utah Jazz and the New Orleans Pelicans hung his No. 7 jersey.

3

Moses Malone

Image: Abhay siby Mathew

Moses Malone was a rebounding machine, plain and simple. He dominated the boards for the Houston Rockets and then the Philadelphia 76ers, where he helped deliver a championship after famously predicting "Fo’, fo’, fo’." Both franchises honored him by retiring his No. 24 (Rockets) and No. 2 (76ers), a fitting salute to one of the game’s toughest, hardest-working big men.

4

Bob Lanier

Image: Batu Gezer

Bob Lanier, known both for his silky post moves and those legendary size-22 shoes, was a true powerhouse of the 1970s. With the Detroit Pistons, he combined strength and finesse, scoring with a soft touch and rebounding like a man on a mission. Later, in Milwaukee, he brought the same fire and leadership to a younger Bucks team, proving that experience could be just as valuable as raw talent. It’s no wonder both Detroit and Milwaukee raised his No. 16 to the rafters, honoring a giant whose big shoes came with an even bigger heart.

5

Charles Barkley

Image: Abhay siby Mathew

Charles Barkley was never the tallest guy on the court—just 6 ft 6 in—but with roughly 252 pounds of muscle, grit, and pure attitude, he played like a bulldozer on wheels. Known as "The Round Mound of Rebound," he crashed the boards with fearless energy. In Philadelphia, he became a fan favorite for his fiery play and quick wit; in Phoenix, he shone even brighter, winning MVP and taking the Suns all the way to the Finals. Both franchises hung up his No. 34 as a salute to a player who made hard work look heroic.

6

Earl Monroe

Image: Chaojie Ni

Earl "The Pearl" Monroe brought poetry to the hardwood. In the 1960s and ’70s, his smooth, stop-and-go style made defenders freeze, and fans fall in love. Starting in Baltimore (now the Washington Wizards ), he turned the Bullets’ offense into a show: spin moves, crossovers, and jump shots that seemed to hang in the air. Then came his move to New York, where he teamed up with Walt Frazier to create one of the most graceful backcourts the NBA has ever seen. Both the Knicks and Wizards retired his No. 15 and No. 10: Monroe’s creativity made basketball feel like jazz.

7

Clyde Drexler

Image: Markus Spiske

In Portland, Clyde "The Glide" Drexler soared with effortless grace, gliding past defenders and making the rim look weightless. His mix of speed, style, and quiet confidence made him the heartbeat of the Trail Blazers through the 1980s and early ’90s. When he returned home to Houston in the mid-’90s, he helped secure a championship ring for the Rockets . Today, his No. 22 jersey hangs in the rafters in both Portland and Houston—a lasting tribute to a man who truly lived up to his nickname.

8

Oscar Robertson

Image: Abhay siby Mathew

What if you averaged a triple-double before anyone thought it was possible? Oscar Robertson did just that in the 1960s, stuffing the stat sheet for the Cincinnati Royals (now Sacramento Kings ) and later winning a title for the Milwaukee Bucks, cementing his legacy as one of the game’s all-time greats. Both franchises retired his numbers 1 and 14, honoring the "Big O," one of the greatest players in NBA history.

9

Julius Erving

Image: Abhay siby Mathew

Long before modern dunks, Julius "Dr. J" Erving was taking flight, turning layups into art and slam dunks into poetry. He first captivated fans with the Nets in the ABA before becoming a true icon in Philadelphia . Both teams honored his brilliance: the Nets retired his No. 32 , and the 76ers lifted his No. 6 into the rafters. When you change the game, you don’t just earn a banner—you earn two.

10

Wilt Chamberlain

Image: Tim Hart

Not many players inspire stories that sound too wild to be true, so if basketball had tall tales, Wilt Chamberlain would star in all of them. A 7-foot-1 force of nature, a giant with legendary scoring numbers—including a 100-point game—Wilt’s dominance stretched across the Golden State Warriors, Philadelphia 76ers, and Los Angeles Lakers. All three teams retired his No. 13.

11

Shaquille O’Neal

Image: Luis Montejo

A 7-foot-1, 325-pound tower of strength, Shaq shook backboards, rims, and entire defenses. After playing college basketball, O'Neal was drafted by the Orlando Magic, where he played for four years. Later, he starred with the Lakers, winning three consecutive titles, then helped the Miami Heat capture its first championship. All three franchises retired his No. 32 and No. 34 jerseys, because when Shaq arrived, the fun—and the winning—followed.

12

Kareem Abdul-Jabbar

Image: Alex Haney

With his skyhook reaching somewhere near the clouds, Kareem Abdul-Jabbar scored more points than anyone in NBA history for decades. He led the Milwaukee Bucks to a title, then added five more with the Lakers. Both franchises retired his iconic No. 33, honoring a player who blended grace and dominance like no one else.

13

Dikembe Mutombo

Image: Finnian HaDiep

One of the best shot-blockers and defensive players of all time, Dikembe Mutombo protected the paint like a personal fortress. He blocked shots, grabbed rebounds, and smiled through it all. The Denver Nuggets loved him. The Atlanta Hawks loved him. Both retired his No. 55. And yes, fans still remember that famous wagging finger after a big block.

14

Michael Jordan

Image: Abhay siby Mathew

Of course, "His Airness" would be on this list! Michael Jordan’s No. 23 isn’t just a jersey—it’s an icon. In Chicago, it hangs high as a symbol of six championships, clutch shots, and a golden era that fans still replay in their minds like a favorite movie. But there’s more: the Miami Heat have honored his number too, even though Jordan never suited up for them. Call it courtesy, call it class, but wherever you go, No. 23 still means one thing: Michael Jordan was here.

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.