1

Hydrox Cookies

Image: Conor Brown

Introduced in 1908, these chocolate sandwich cookies with cream filling were the original, while Oreos followed four years later in 1912 . Hydrox had a crunchier cookie and a less sweet filling, which devoted fans absolutely loved.

Hydrox disappeared from shelves in 2003, leaving longtime fans heartbroken and insisting that they were superior to their more famous competitor. The cookie made a brief comeback in 2015 under new ownership, but it never quite recaptured its former glory or widespread availability.

2

Squeezit

Image: Haley Owens

Squeezit arrived on the scene in 1985 with its unique bottle design that you literally had to squeeze to drink from—no straw needed! The bottles came in wild colors and flavors like Chucklin' Cherry and Grumpy Grape, each with its own cartoon character printed on the label.

General Mills discontinued Squeezit in 2001, crushing the dreams of millennials everywhere who had fond memories of squeezing these bottles a little too hard and squirting juice everywhere.

3

Jell-O Pudding Pops

Image: sheri silver

Bill Cosby might have made these famous in commercials, but it was the frozen treat itself that made Pudding Pops legendary in the 1980s. Introduced in 1979, these weren't your typical popsicles— they had a creamy, mousse-like texture that was somewhere between pudding and ice cream.

Jell-O discontinued the original Pudding Pops in the early 1990s, and despite several attempted comebacks with different formulations, they've never tasted quite the same as the originals. People who remember the real deal insist that the modern versions just don't have that same creamy texture or rich flavor.

4

Crystal Pepsi

Image: Giorgio Trovato

Launched in 1992, this clear cola was supposed to represent "purity" and tap into the clear product craze of the era . It tasted almost exactly like regular Pepsi, which created a weird cognitive dissonance: your brain expected lemon-lime, but your taste buds got cola. Crystal Pepsi flopped hard and disappeared by 1994, but it achieved cult status among nostalgic millennials and Gen Xers.

5

Bonkers! Candy

Image: Edgar Chaparro

"Bonkers bonks you out!" went the commercial jingle, and this chewy fruit candy certainly made an impact when it hit stores in the early 1980s. Each piece was wrapped individually and packed an intensely fruity flavor that was almost overwhelming—in a good way . Bonkers came in flavors like grape, strawberry, and watermelon, and they had a unique texture that was chewier than Starburst but softer than taffy.

Nabisco stopped making Bonkers in the 1990s, and fruit candy lovers have been mourning ever since. There were brief periods when the candy reappeared under different ownership, but it never achieved the same widespread distribution.

6

Dunkaroos

Image: RUMEYSA AYDIN

Introduced by Betty Crocker in 1990, these snack packs came with small kangaroo-shaped cookies and a container of frosting for dipping. The concept was simple but brilliant—make cookies even more fun by turning them into an interactive snack. Flavors included chocolate chip cookies with vanilla frosting, vanilla cookies with chocolate frosting, and the ultimate combo of chocolate cookies with chocolate frosting.

General Mills discontinued Dunkaroos in the United States in 2012, sparking outrage among millennials who considered them a sacred part of their childhood. The good news? After years of petitions and social media campaigns, Dunkaroos made a triumphant return in 2020.

7

Clearly Canadian

Image: 소녀

Before sparkling water became trendy, there was Clearly Canadian— a flavored sparkling water that came in distinctive teardrop-shaped glass bottles . Launched in 1987, this Canadian import became hugely popular in the U.S. throughout the late 80s and 90s. The flavors had fancy names like Wild Cherry, Country Raspberry, and Orchard Peach, and the carbonation was more aggressive than today's LaCroix.

Clearly Canadian largely disappeared from American stores in the 2000s as other beverages dominated the market, though the company never completely shut down. Thanks to a Kickstarter campaign in 2015, it made a comeback, but it's still not as widely available as it once was.

8

P.B. Crisps

Image: Olga Nayda

Planters gave us the ultimate peanut butter snack in 1992 with P.B. Crisps— crispy shell-shaped cookies filled with peanut butter . These weren't ordinary peanut butter cookies; they had a unique, crispy texture on the outside and creamy peanut butter on the inside, creating a perfect contrast.

Sadly, P.B. Crisps were discontinued in 1995 after just three years on the market, leaving peanut butter lovers devastated. No snack has quite filled that void—Nutter Butters are too cookie-like, and peanut butter crackers are too cracker-like.

9

Altoids Sours

Image: Customerbox

These tiny, tangy candies came in flavors like Tangerine, Citrus, and Raspberry, and they packed a seriously sour punch that made your whole face scrunch up . They came in the same iconic tin as regular Altoids, which made them feel substantial and collectible.

Altoids discontinued the Sours in 2010, and fans have been petitioning for their return ever since. There have been multiple online petitions, Facebook groups, and even people hoarding old tins as collectors' items.

10

Snapple Elements

Image: Snappr

Launched in 1999, these drinks came in wide-mouthed glass bottles and had more exotic flavors than typical Snapple offerings . Rain was agave cactus, Sun was starfruit, and Fire was dragonfruit. The bottles themselves were beautiful, with distinctive designs and colors that made them stand out on store shelves.

The Elements line was discontinued in the early 2000s, though Snapple brought back a reformulated version in 2008 that wasn't quite the same. The original Elements had a devoted following who appreciated the more complex flavors and the beautiful bottle design.

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.