1

Lewis and Clark (1804–1806)

Image: Museum of New Zealand Te Papa Tongarewa

Everybody knows about Lewis and Clark and their glorious quest across the nation, but what most don’t know is that they originally set out to find a continuous water route, the fabled Northwest Passage, from the Mississippi River to the Pacific Ocean. Commissioned by President Jefferson, the journey was meant to open up western trade routes.

Although they reached the Pacific, they confirmed that no such navigable waterway existed. Their journey was a landmark of exploration, but their primary goal remained unaccomplished .

2

Lady Franklin Bay Expedition (1881–1884)

Image: David BP

The 1881 Adolphus Greely-led expedition aimed to establish a scientific research station in the high Arctic and gather meteorological and astronomical data as part of the First International Polar Year.

But two relief ships failed to reach them due to ice. Stranded for over two years, only 7 of 25 men survived. While some data was collected, the mission was a logistical and human failure .

3

Frederick A. Cook (1908)

Image: Roxanne Desgagnés

American explorer Frederick Cook claimed he reached the North Pole in 1908, beating Robert Peary by a year. His announcement stirred immediate controversy and public excitement.

However, Cook failed to provide verifiable proof, and his claim was largely discredited . He also falsely claimed the first ascent of Denali. His goals, while grand, were never validated .

4

Amelia Earhart (1937)

Image: Shaun Bell

Amelia Earhart sought to be the first woman to fly around the world along the equator. Her journey was a bold attempt to push the limits of aviation and global navigation.

Tragically, she vanished over the Pacific near Howland Island. Despite massive search efforts, neither she nor her plane was found. Her historic goal remains unfulfilled .

5

USS Jeannette Expedition (1879–1881)

Image: Hector John Periquin

The Jeannette Expedition set out to reach the North Pole via the Bering Strait, based on a theory that a warm current could carry ships through the ice.

Instead, the ship was trapped and crushed by ice. The crew made a desperate trek across Siberia, with many dying from exposure and starvation. The pole was never reached , and the voyage ended in tragedy.

6

Crocker Land Expedition (1913–1917)

Image: Annie Spratt

Backed by Robert Peary’s reports, this expedition aimed to locate "Crocker Land," a supposed Arctic landmass seen on a prior voyage.

After weeks of travel, they discovered it was a mirage. The team was stranded for years due to failed rescue attempts. Their quest failed because the land never existed .

7

American Karakoram Expedition (1953)

Image: Daniel Born

Led by Charles Houston, the expedition aimed to be the first to summit K2, the world’s second-highest mountain after Everest. The team climbed high and established advanced camps.

Trapped by a severe storm, they made a heroic retreat. One climber died, and the summit remained out of reach . Their attempt was noble, but ultimately unsuccessful.

8

Ziegler Polar Expedition (1903–1905)

Image: ArcticDesire.com Polarreisen

The abundance of Arctic expeditions on this list is not a coincidence. This area is tough to traverse, and much of it remains unknown. This particular expedition sought to reach the North Pole via Franz Josef Land. The crew wintered in the Arctic with supplies and dogs for the attempt.

Severe ice and harsh conditions thwarted their progress. They were stranded for two years and never neared the pole. Though most survived, the mission failed in its main goal .

9

Zebulon Pike (1805)

Image: Mathew Benoit

In 1805, Army officer Zebulon Pike was tasked with exploring the headwaters of the Mississippi River. The goal was to identify its true source and assert U.S. presence in the newly acquired Louisiana Territory.

Facing poor maps, freezing conditions, and supply shortages, Pike never reached the actual source . Though he gathered useful data, the mission failed to meet its primary objective.

10

American China-Everest ’82 Expedition (1982)

Image: Andreas Gäbler

Led by Lou Whittaker, this team aimed to summit Mount Everest via the remote Chinese (Tibetan) side, which was an unusual and challenging route for American climbers at the time.

Despite significant progress, they turned back just 1,500 feet from the top due to difficult conditions. The summit remained unreached .

1

The Beale Ciphers - Virginia

In the early 1800s, three coded papers surfaced, said to reveal the location of a hidden treasure in Virginia . Only one cipher (the second) has been partially decoded using the Declaration of Independence, pointing to a stash of gold, silver, and jewels.

Treasure hunters and cryptographers have tried for decades to crack the remaining ciphers. Yet, so far, no one has succeeded.

2

The Georgia Guidestones - Georgia

Erected in 1980, the granite monument carried inscriptions in multiple languages , laying out guidelines for humanity’s future. The massive slabs earned the nickname "America’s Stonehenge."

The mystery lies in who commissioned it. The sponsor used a pseudonym and never revealed their identity. Too bad they were destroyed in 2022 after being damaged by an explosion.

3

The "Wow!" Signal - Ohio, 1977

One night in 1977, Ohio State University’s Big Ear telescope picked up a deep-space radio burst lasting 72 seconds . Astronomer Jerry Ehman circled it and wrote "Wow!" beside the data.

The signal has never been definitively explained. Whether it was a passing comet, a reflection, or something else, no one knows.

4

Roanoke Colony’s "CROATOAN" - North Carolina

In the late 1500s, settlers on Roanoke Island disappeared, leaving only the word "CROATOAN" carved on wood . Their fate remains one of the earliest American mysteries.

Some think they merged with local tribes, while others suggest they relocated. Without proof, the vanished colony remains a puzzle historians love to revisit.

5

The Taos Hum - New Mexico

Since the 1990s, some residents of Taos report hearing a low, steady humming sound . It’s described like a distant diesel engine idling in the desert.

Some studies suggest it may be related to low-frequency industrial noise or tinnitus in some individuals. The reality is, scientists have studied the phenomenon but haven’t pinned down a cause.

6

Marfa Lights - Texas

Out in West Texas, glowing orbs have appeared on the horizon for generations . They shimmer, split, and move in ways that seem inexplicable.

Tourists flock to Marfa hoping to catch a glimpse. Some suggest car headlights or atmospheric tricks, but the mystery remains.

7

Bloop-Like Ocean Sounds - Pacific Ocean

In the 1990s, NOAA hydrophones picked up a booming, low-frequency sound in the Pacific Ocean . Nicknamed "the Bloop," it was louder than known whale calls.

Theories ranged from icequakes to giant sea life. NOAA later concluded the sound was likely caused by large icequakes from Antarctic ice breaking apart.

8

The Upton Chamber - Massachusetts

Hidden in Massachusetts is a stone tunnel leading to a small underground chamber . Its age and purpose are still debated.

Some believe it was a colonial root cellar, while others argue it predates settlers entirely. Without records, the chamber remains an enigmatic piece of New England history.

9

America’s Stonehenge - New Hampshire

This site features stone walls, chambers, and standing slabs . Some argue it was built by Native Americans, while others see evidence of pre-Columbian visitors.

While some alternative theories suggest ancient origins, most archaeologists believe the structures are from the colonial-era. Whatever its origin, it’s a fascinating stop for curious travelers.

10

The Great Serpent Mound - Ohio

In southern Ohio lies a massive prehistoric earthwork shaped like a winding serpent . Stretching over 1,300 feet, it curves and coils across the landscape in striking detail.

Scholars agree it was built by Indigenous peoples, but its purpose is unclear. Some suggest it was a ceremonial site or calendar, while others see cosmic symbolism.

11

The Blythe Intaglios - California

Etched into the Colorado Desert, these giant figures depict humans and animals , some over 170 feet long. They’re best seen from the air, raising questions about how and why they were made.

Created centuries ago by Native Americans, their exact age and purpose remain uncertain.

12

Judaculla Rock - North Carolina

This large boulder is carved with hundreds of mysterious petroglyphs . Shapes, lines, and symbols cover its surface, their meanings long lost to time.

The Cherokee connect the markings to Judaculla, a legendary giant. Whether the rock was a sacred site, a map, or something else, the exact meanings of many carvings remain unknown.

1

Apple pie

Image: Priscilla Du Preez 🇨🇦

You can’t talk about traditional American desserts without mentioning apple pie, so let’s kick off this article with it! While its roots trace back to Europe, apple pie has become a symbol of American pride.

It’s the perfect combination of buttery crust, sweet apples, and warm spices like cinnamon. Of course, like any traditional dish, there are several variations. But isn’t it great to go back to the basics? If there’s one pie everyone loves, this is it!

2

Brown Derby cake

Image: amirali mirhashemian

The Brown Derby Cake isn’t your typical pie, but its story is worth savoring. It was created in 1927 by caterer Harry Baker in Los Angeles.

You might be wondering about the name’s origin—it comes from its domed shape, which resembles a derby hat. Made famous by the iconic Brown Derby restaurant, this cake combines rich chocolate layers with airy whipped cream and fruit for a delicious finish. If you’re feeling fancy, this is the treat to try!

3

Cranberry pie

Image: Food Photographer | Jennifer Pallian

Do you know how some feelings can be tasted? Well, if you want to taste autumn, have a slice of cranberry pie.

This tangy treat is a favorite during the holiday season, thanks to its beautiful red hue and bold flavor. Made with fresh or dried cranberries, sugar, and a hint of orange zest, it perfectly balances sweetness and tartness. Serve it at Thanksgiving and watch it quickly become the star of the show.

4

Sour Cream Rhubarb Pie

Image: Maximilian Zahn

If you’ve never tried sour cream rhubarb pie, you’re in for a treat. The tartness of the rhubarb is mellowed by a creamy custard filling made with sour cream, creating a dessert that is both tangy and luxurious.

Often topped with a crumbly streusel, this pie is a Midwest favorite that feels both rustic and indulgent. Give rhubarb a chance—in a pie, it’s a superstar!

5

Pecan pie

Image: nikohoshi

Speaking of classics, pecan pie is the king of Southern desserts—and for good reason, we might say! With a gooey filling made of sugar, butter, and eggs, topped with toasted pecans, it’s as rich as it gets.

Traditionally served during Thanksgiving, this pie has a caramel-like sweetness that pairs perfectly with whipped cream. And the crunch of the pecans? It’s dessert perfection in every bite!

6

Lemon tart

Image: Ira Ushak

Okay, this isn’t technically a pie, but a lemon tart deserves a spot in this article, don’t you think? This tangy dessert features a velvety lemon custard nestled in a buttery crust.

It’s like sunshine on a plate—bright, bold, and just the right amount of sweetness! Lemon tarts are refreshing compared to heavier desserts, there’s not a specific season for them, making them perfect year-round. It’s a must-try for citrus lovers!

7

Squash Custard Pie

Image: Natalia Y.

This one might come as a surprise to you, but it’s a delicious nod to fall flavors, and if you like pumpkin pie, you’ll like this one too. Made with sweetened pureed squash, eggs, cream, and warm spices, it offers a fun and unique twist, right?

Squash pies have been part of American cuisine since colonial times, showcasing the resourcefulness of early cooks. It’s a cozy, comforting dessert that’s perfect for sweater weather.

8

Oregon’s Marionberry Pie

Image: micheile henderson

Oregon takes pride in many things, and one of them is marionberry pie—as it should! Marionberries, a cross between two types of blackberries, are sweet, juicy, and perfect for a pie. Native to Oregon, these berries create a filling that’s rich and slightly tart. The pie is a regional treasure, it's as Oregonian as rainy days and coffee shops.

9

Coca-Cola cake

Image: Toa Heftiba

No, we’re not kidding. Coca-Cola cake was born in the South, and it is as uniquely American as its namesake soda.

In case you were wondering, yes, Cola is a key ingredient, and it gives the rich, moist chocolate cake a subtle caramel flavor. It’s often topped with a fudgy glaze, and if you’re a Coca-Cola fan, you simply must try a slice of this one!

10

Carrot cake

Image: Sharon Chen

As you can see, using vegetables as key ingredients in pies is quite common—and successful! Carrot cake is a moist, spiced cake studded with grated carrots and often walnuts or raisins. As if that weren’t enough, we can’t forget about the cream cheese frosting, which made it quite popular among Americans. Do you like this one?