1

Calling on the go

Image: Peter Conrad

Remember scrambling for a few coins just to make a call? Payphones were once the only option when we were out and about. Stepping into that narrow booth, shutting the door behind you, and enjoying a moment of privacy in the middle of a busy street—there was something almost comforting about it. It was like entering your own little world, at least for a couple of minutes. These days, all we need is a quick tap on our smartphones, and we're instantly connected, texting or calling without a second thought. It’s hard to imagine how reliant we once were on those old, clunky machines.

2

Renting movies

Image: Lucas Pezeta

The thrill of stepping into a bustling video store was unlike anything today’s streaming services can replicate. You’d wander down aisles packed with vividly colored VHS tapes , each promising a new adventure. Flipping over the box to study the cover art, reading the credits on the back, and debating with a friend about which one to choose was a delightful experience. Even the faint scent of plastic immediately meant you were in for a treat! That simple ritual of holding a tape in your hands created a sense of anticipation and excitement that no algorithm could ever replace.

3

Inflight smoking

Image: Willem van de Poll, CC0, via Wikimedia Commons

In the past, flying meant more than just traveling from one city to another—it also came with the freedom of lighting up a cigarette at 30,000 feet. Airplanes had designated smoking sections where passengers could relax, chat, and enjoy a puff as the clouds drifted past the windows. It wasn’t limited to a cramped bathroom stall; entire rows of seats were reserved for smokers, allowing a haze of cigarette smoke to linger in the cabin. Today, someone flicking a lighter mid-flight feels downright impossible, but back then, it was a part of air travel, blending seamlessly into the normal routines of passengers and crew alike.

4

Watching TV shows at specific times

Image: Bruna Araujo

Back in the ’60s, ’70s, and ’80s, the television set was the heart of the home. Evenings were carefully planned around the networks’ schedules, with everyone rushing to grab a spot on the couch to catch their favorite shows. There were no streaming platforms, DVRs, or on-demand options—if you missed an episode of M A S H or Dallas , you had to wait for a rerun . The ritual of sitting together, passing the popcorn, and reacting in unison to every twist and punchline created shared experiences that shaped conversations at school, at work, and across society.

5

Recording songs off the radio

Image: Jon Tyson

Before iPods and Spotify playlists, listening to music was a hands-on, almost ritualistic experience. If you wanted to capture that perfect song, you had to park yourself next to the radio, finger poised over the record button, ears straining to catch the opening notes before the DJ’s voice intruded. Each recording you made became a personal treasure, a handcrafted collection of melodies carefully curated to match your mood or even remind you of your secret crush. These homemade mixtapes weren’t just recordings; they were little time capsules, unique expressions of your feelings, created with patience, care, and a touch of magic that no digital playlist could ever fully imitate.

6

Hitting up the arcade

Image: Roger Ce

During the 1980s, video arcades were the ultimate playground . Stepping inside those dark rooms meant entering a world of blinking lights, beeping machines, and the unmistakable clatter of buttons being mashed in furious competition. Dropping a token into a machine carried such a thrill! The energy—the smell of popcorn and soda, the laughter echoing across the room— created an immersive social experience. Modern home consoles and online gaming may be more convenient, but they rarely capture that electric, face-to-face camaraderie and the pure sensory joy of an arcade packed with neon lights and catchy sound effects.

7

Navigating paper maps

Image: Hendrik Morkel

Before the age of GPS and smartphones, road trips relied on good old-fashioned physical maps. Those oversized sheets of paper stretched across car seats and dashboards, as everyone tried to find the best route. Planning a trip meant carefully studying every road, estimating distances, and hoping you didn’t make a wrong turn. And when you inevitably did? You’d pull over, wave down a stranger, and ask for directions—sometimes discovering hidden diners, quirky roadside attractions, or scenic shortcuts along the way. Getting lost wasn’t just a misfortune; it was part of the adventure, turning every detour into a memorable story, something today’s satellite navigation could never give you.

8

Reading newspapers

Image: Claudio Schwarz

Settling into your favorite chair with a steaming cup of coffee and unfolding the paper was the ultimate morning ritual. It wasn’t just about catching up on the news— it was about the experience itself. Turning each page carefully, scanning headlines, lingering over the sports scores, chuckling at the comics, and sometimes discussing the day’s stories with family or neighbors made it a shared tradition. Today, with news available instantly on our phones and tablets, that slow, deliberate connection—the feeling of being present with the world as it woke up—has virtually disappeared.

9

Listening to music on a Walkman

Image: cottonbro studio

Ah, the Walkman—that small rectangular marvel encapsulating the world of music right inside your pocket. You could carry an entire collection of albums with you, from Elvis to Sinatra, and listen wherever you went. Whether strolling to school, waiting for the bus, or just wandering around the neighborhood, your personal soundtrack followed you everywhere. Popping in a cassette, pressing play, and letting the songs sweep you away, drowning out the outside world and turning every ordinary moment into a private concert, was pure magic.

10

Hanging out at the mall

Image: Jeyakumaran Mayooresan

Before the internet transformed the way we shop, malls were bustling social hubs . In the ’70s and ’80s, they weren’t just places to buy things. At shopping centers, you ate pizza and spent hours wandering around, window-shopping, or trying on clothes that were probably out of your budget. The mall was the ultimate hangout spot—whether you were meeting new people, catching up with old friends, or simply enjoying the cool air conditioning on a sweltering summer day.

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.