1

Dance marathons

Image: Ardian Lumi

Dancing has always been a praised activity for having some fun and passing the time. It’s simple and requires nothing but a music-playing device. So, back in the ‘20s, people felt the need to find a new twist for this basic entertainment and so they thought making dance marathons was a great idea.

How did they work? The concept was as simple as dancing: Couples would compete to see who could dance the longest all for a shot at cash prizes. But we’re not talking hours here—the contest could last for days! Audiences watched in fascination (and a bit of morbid curiosity, we might add) as exhausted dancers pushed their bodies to the limit. Remember, this was a time when missing out on a chance for quick money and a bit of fun was not a possibility!

2

Flagpole sitting

Image: Jonathan Simcoe

We don’t know if he was trying to break a record or if he just needed some alone time, but after Alvin "Shipwreck" Kelly climbed atop a flagpole in 1924 and stayed there for over 13 hours, a new fad was born: flagpole sitting.

And speaking of basic trends, this is exactly as you read it: People all over America were climbing up and sitting on flagpoles to see how long they could stay up there. We can all agree that these people were after entertainment and a bit of competition. And it got so serious the record eventually stretched to an astonishing 49 days!

By the 1930s, though, the thrill wore off and the fad faded, but the absurdity of it all remains—and earned it a spot on this list!

3

Stickball and stoopball

Image: Jeremy Stewardson

Sports today are no longer just about playing the game. For most of them, you need a lot of equipment, which is rather expensive, especially if you’re going to use it in the streets with your friends from the block.

Back in the ‘20s, baseball equipment was hard to come by. As a result, American kids in crowded urban areas came up with their own inventive versions of the game: stickball and stoopball. The fun behind this trend? Using whatever they had on hand to play: Broomsticks for bats, rubber balls, and parked cars or stoops as bases. The games required nothing more than creativity and a few friends. And no one can deny—the 1920s were indeed a creative time!

4

Johnny on a pony

Image: freestocks

This is a trend that started in the 1940s, and the names used for this game are simply hilarious: "Strong horses, weak donkeys," "Hunch, Cuddy, Hunch," just to name a few.

Johnny on a Pony, or Buck Buck, was a rough-and-tumble game in which one team bent over to form a "horse" while the other team took turns jumping on their backs, trying to knock them over .

You may think this was innocent, but not quite—it was chaotic, sometimes painful, and, more often than not, left participants in a pile of tangled limbs.

Kids do not care for those things, but the game’s physical nature made it exhilarating and dangerous at the same time. That’s why, eventually, concerned parents and schools stepped in and banned it—one too many injuries to keep it going!

5

Drive-In movie theaters

Image: Tim Mossholder

Movie theaters are great, but drive-in movie theaters are even better—they were the ultimate fusion of America’s love for cars and entertainment.

The first official drive-in theater opened in 1933, and it was an alternative for families to a fun and affordable night out under the night sky, watching a movie from the comfort of their car . No wonder this quickly became a beloved American pastime. And you can already imagine whose favorite this was: Teens and young couples, who enjoyed the privacy of their cars while watching the latest films of the time.

The trend slowly faded as film rentals became more popular, and later with the rise of streaming platforms. However, keep an eye out for this one, because it’s definitely making a comeback!

6

Miniature golf

Image: Will Porada

Some may argue that the fad behind miniature golf never actually died, and that’s partially true. But let’s go back to the time it first appeared and all the craze that erupted around it.

It wasn’t until Garnet Carter opened his "Tom Thumb" golf course in 1927 that miniature golf became a true sensation . Located in Lookout Mountain, Tennessee, Carter’s course wasn’t just about putting greens; it also featured miniature goblins, gnomes, and other fun obstacles for players.

We don’t know if he knew this would be so successful, but Carter went all in: He patented the design, and it hit the jackpot—miniature golf became a nationwide success.

7

Hood ornaments

Image: Clem Onojeghuo

Funny thing about the past: You didn’t always need to be extravagant to be trendy—sometimes, just a tiny ornament on your car was enough.

In the 1920s and ‘30s, no car was complete without a stylish hood ornament adorning its radiator . At first, these ornaments were designed to check on the engine temperature. But they soon evolved into artistic expressions of each brand to showcase wealth and personality.

We all recognize the winged goddess or the jaguar jumping out of the car, right?

However, this trend didn’t last long. As car designs modernized and safety became a concern, hood ornaments became less common, and eventually, all but disappeared. If you see a car with one of these today, you can bet it’s worth more than one can get in a lifetime!

8

Kilroy was here

Image: Richard Cohrs

There are two generations: One is looking for Waldo, and the other is looking for Kilroy. Which one do you belong to? Now, if you’re wondering who Kilroy is, let us tell you.

Kilroy was a doodle, and the complete drawing consisted of Kilroy and a message that read "Kilroy Was Here." This graffiti popped up just about everywhere during World War II.

The doodle, featuring a bald, long-nosed figure peeking over a wall, was a symbol of American presence and humor. It’s said that Kilroy was originally the work of James J. Kilroy, a shipyard inspector who scrawled it on equipment he inspected.

But that was just the beginning—the drawing spread to every corner of the globe. Have you ever come across one?

9

Swing dancing

Image: Clarisse Meyer

Few things are as time-sensitive and culturally reflective of an era, don’t you think? In the early 20th century, specifically during the 1920s and 1930s, the dance that dominated every dance floor was swing . And it makes perfect sense—this was the Jazz Age, so swing dancing perfectly matched the exuberance of that music!

Dances like the Lindy Hop, Charleston, and Jitterbug took over dance halls, with young people spinning, jumping, and flipping to the infectious rhythm of big bands.

Older generations sometimes frowned upon the flashy, intimate dance styles, but that only made them more appealing to rebellious youth. Some things never change!

10

Stamp collecting

Image: Tolga deniz Aran

Philately is the collection of stamps or the study of them, and it became a fad across the United States during the 1920s and the ‘30s. Why? Here is the reason.

Stamps offered people a way to explore history, geography, and art. They were everyday items, easy to access, and nobody could escape them. For example, President Franklin D. Roosevelt was an avid stamp collector. Not that he needed them to learn about history or art—it was just a way to have fun.

Contrary to other trends we have discussed, schools encouraged this hobby, because it was both educational and enjoyable. Collecting stuff is a never-ending trend; there are all kinds of collections today and stamp collections today are almost invaluable!

1

Northern frontier

Image: UC Berkeley, Department of Geography

Location: Point Barrow, AK

Point Barrow, the northernmost point in the U.S., was first explored by Europeans in 1826. Sitting at 71°23′N, it endures long, brutal winters with near-constant darkness.

Winter temperatures drop below -50°F, and the sea remains frozen for much of the year. Despite the conditions, native Iñupiat communities have thrived here for centuries. Today, it remains a key site for Arctic research.

2

Lowest land

Image: Karsten Winegeart

Location: Badwater Basin, CA

First documented in the mid-1800s, Badwater Basin in Death Valley is the lowest point in North America at 282 feet below sea level. It was named after a surveyor’s horse that refused to drink the salty water.

The basin’s extreme location means temperatures here frequently top 130°F in summer. Salt flats stretch for miles, remnants of an ancient lake that dried up thousands of years ago.

3

Hottest spot

Image: Pablo García Saldaña

Location: Furnace Creek, CA

On July 10, 1913, Furnace Creek recorded 134°F, the highest temperature ever measured on Earth. This Death Valley outpost still holds the title for the hottest inhabited place in the U.S.

Despite the heat, Furnace Creek has a permanent population and even a golf course, making it one of the strangest places where people manage to live. The area’s extreme conditions attract researchers studying heat endurance.

4

Coldest cold

Location: Prospect Creek, AK

Alaska’s Prospect Creek hit -80°F in 1971, the lowest temperature ever recorded in the U.S. Originally an outpost for pipeline workers, it’s now abandoned due to its brutal winters.

At this temperature, exposed skin can freeze in seconds, and vehicles must run continuously to avoid freezing. The area sees only a few hours of daylight in winter, making survival nearly impossible without proper equipment.

5

Windiest place

Image: Dan Meyers

Location: Mount Washington, NH

Mount Washington holds the record for the fastest surface wind speed ever recorded outside a tornado: 231 mph, measured in 1934. This New Hampshire peak is notorious for its deadly weather.

Though just 6,288 feet tall, its location at the convergence of several storm systems makes it feel like the roof of the world. Hikers often face hurricane-force winds, whiteouts, and below-zero temperatures even in summer.

6

Wettest town

Image: Martin Zangerl

Location: Kukui, HI

Kukui, on the Hawaiian island of Kauai, receives an average of 460 inches of rain annually. In 1982, it saw a staggering 683 inches, making it one of the wettest places on Earth.

The rain feeds lush tropical forests and countless waterfalls, but the steep terrain means flash floods are a constant danger. Despite its beauty, the relentless downpours make long-term settlement nearly impossible.

7

Deepest cave

Image: Joshua Sortino

Location: Lechuguilla Cave, NM

Discovered in 1986, Lechuguilla Cave is the deepest in the U.S., plunging 1,604 feet below New Mexico’s surface. It remained hidden for centuries due to its small, concealed entrance.

Its vast chambers contain formations found nowhere else on Earth, including giant gypsum chandeliers. Access is restricted to scientists, as the cave’s unique ecosystem is still being studied.

8

Largest volcano

Image: Sherry Jiang

Location: Mauna Loa, HI

Mauna Loa is the world’s largest volcano, covering half of Hawaii’s Big Island. It last erupted in 2022, continuing a pattern of activity dating back over 700,000 years.

Rising 33,500 feet from the ocean floor, Mauna Loa dwarfs even Everest when measured from base to peak. Its slow-moving lava flows have repeatedly reshaped the island’s landscape.

9

Deepest lake

Image: Jeff Hopper

Location: Crater Lake, OR

Formed by a collapsed volcano 7,700 years ago, Crater Lake is the deepest in the U.S. at 1,949 feet. Its intense blue waters come from rain and snowmelt, with no rivers flowing in or out.

The lake’s purity allows sunlight to penetrate to great depths, creating an otherworldly glow. Among its many wonders, the submerged "Old Man of the Lake," a floating log, has been drifting in its waters for over a century.

10

Most remote

Image: Harrison Hargrave

Location: Yellowstone Thorofare, WY

The Yellowstone Thorofare, 32 miles from the nearest road, is the most remote place in the Lower 48. It remains nearly unchanged since its first mapping in the 19th century.

Even experienced hikers struggle here, as grizzly bears, sudden storms, and subzero temperatures make survival difficult. This untouched wilderness offers a rare glimpse of what America once was.

1

Seattle Underground City

Did you know the remnants of Seattle's original streets are still accessible? Beneath the bustling streets of modern-day Seattle lies the Underground City , a network of subterranean passageways that formed the ground level in the 1800s.

By the end of the 19th century, after the Great Seattle Fire, it was decided to rebuild the city at a higher elevation to combat frequent flooding . So, these original streets, sidewalks, and storefronts were buried, and with it, much of their history.

Guided tours take people through tunnels and ladders and retell real and eerie stories about the history of the Underground City.

2

Luray Caverns

Image: Robert Thiemann

Have you ever heard of the underground Stalacpipe Organ ? Not only is it a one-of-a-kind interaction between keyboards and cavern stalactites, but it is also the largest musical instrument in the world, according to Guinness World Records.

This instrument lives in the Luray Caverns, Virginia. It consists of an electric console that taps on these ancient stalactites of varying sizes to produce musical tones. A subterranean wonder, these caverns are also known for their extraordinary size , housing towering stalactites and stalagmites, mirrored pools, and delicate drapery-like calcite formations.

3

The Underground Gardens of Baldassare Forestiere

Image: Adrian Botica

This stunning subterranean retreat was built entirely by hand. Tucked under the sun-scorched landscape of Fresno, California, lie the Underground Gardens of Baldassare Forestiere . They are the life’s work of Baldassare Forestiere, a Sicilian immigrant who started digging in the early 1900s to escape the Central Valley's oppressive heat.

Over 40 years, drawing inspiration from ancient Roman catacombs , Forestiere carved an elaborate network of underground rooms, passageways, grottoes, and courtyards that span 10 acres.

A unique masterpiece, the gardens are open with guided tours that lead guests through beautifully designed spaces featuring skylights, arches, and alcoves. This oasis also boasts an array of fruit trees, including citrus, figs, and olives.

4

Ruby Falls

Image: Goodfreephotos_com

Colorful and breathtaking, the Ruby Falls is a geological wonder located inside Lookout Mountain near Chattanooga, Tennessee.

Hidden over 1,000 feet below the mountain's surface, this waterfall cascades 145 feet into a pool , making it one of the tallest underground waterfalls open to the public.

Visitors enter the mountain and descend via elevator. Then, they walk through stunning cave formations such as stalactites, stalagmites, and flowstone. At the waterfall chamber, multicolored lights –powered by renewable energy– illuminate the falls. Lantern-lit tours are also offered as a chance to visit the marvel with a different charm.

5

The Catacombs of Green-Wood Cemetery

Image: Joy Ernst

Arched tunnels of tranquil, sacred vaults lie beneath the Green-Wood Cemetery in Brooklyn, New York. Built in the mid-19th century, these catacombs were designed as a prestigious resting place for the city’s elite , prominent families.

While the catacombs are typically closed to the public, special events are sometimes organized to welcome visitors, such as art expositions, guided history tours, and candlelit tours seasoned with live music and storytelling.

Outside, where the sun does reach, await the serene landscapes and remarkable monuments of the cemetery, which is itself a National Historic Landmark .

6

The Lost Sea

Image: Roberto Nickson

The largest underground lake in America is in Tennessee. Hidden within the Craighead Caverns in Sweetwater, this enormous body of water lies in a cave system filled with fascinating formations, such as stalactites, stalagmites, and rare anthodites, also known as "cave flowers."

A National Natural Landmark, this lake marvels scientists, who are yet unaware of the exact extension of its waters. Those who visit can embark on a boat ride called "The Lost Sea Adventure," first walking inside the cavern before reaching a boat to navigate these ethereal sights.

7

Mammoth Cave National Park

Image: Sherin Jacob

The Mammoth Cave National Park is home to the longest cave system in the world . Located in central Kentucky, it extends over 420 miles of explored passages and many more likely undiscovered. Enormous chambers, underground rivers, a labyrinth of tunnels, and gypsum crystal formations can all be found at this site.

The park has been declared a UNESCO World Heritage Site and an International Biosphere Reserve. It also includes over 52,000 acres of protected land on the surface, renowned for its lush forests and diverse wildlife.

8

Carlsbad Caverns National Park

Image: Cason Asher

A large bat colony lives in the Carlsbad Caverns National Park in New Mexico, but that’s not its only charm. The park boasts over 100 caves, with its centerpiece being the immense Carlsbad Cavern.

The cavern includes the Big Room, one of the largest underground chambers in North America, spanning 8.2 acres. Visitors can descend via an emblematic natural entrance or by elevator, dropping 750 feet underground. Stalactite formations like the Giant Dome, the Hall of the White Giant, and the Chandelier are some of the caves' breathtaking highlights.

9

Indian Echo Caverns

Image: Magda Ehlers

The Indian Echo Caverns, which have been open to the public since the early 1920s, are carved into the limestone of the Appalachian Mountains. Located near Hummelstown, Pennsylvania, this site gets its name from the echoes heard within the cavern’s chambers , which were once believed to be mystical by Native American people in the area.

Unique, immersive sections of the caverns have names like the "Crystal Palace," the "Echo Room," and the "Wedding Room," where, yes, real weddings are sometimes held!

10

Wind Cave National Park

Image: Francesco Ungaro

Wind Cave National Park, located in the Black Hills of South Dakota, is one of the world’s largest caves, but that’s not what it’s most famous for. One signature sight here is the boxwork formation , a rare lattice-like pattern formed by calcite deposits.

The cave system stretches for over 140 miles, though much of it remains unexplored. Popular tours take guests through captivating features like the "Ribbon Room" and the "Crystal Palace."

Why is Wind Cave called that? Mainly due to the "wind" phenomenon that occurs at its entrance. The cave's air pressure causes the entrance to draw in or expel air, depending on atmospheric conditions.