Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

Between 1930 and 1946, a tobacco farmer laid his beloved horses and mules to rest in this small patch of pine forest.

A museum dedicated to an incredible woman who founded a pioneering school for rural Black students.

This sprawling museum holds one man's giant collection of real tanks.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The oldest residential street in Europe also features an optical illusion.

The former location of a platform that allowed passengers to safely wait for the trolley.

This tiny patch of arid sand sits in one of the greenest states in the United States.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

This massive subterranean fissure is known as the "underground Grand Canyon."

This research center for rare prosimians is studying how they sleep to help prolong human life.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

One of the few surviving original NASCAR dirt-track speedways.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

Jacksonville's highways rendered this century-old grammar school unusable.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

Meet manatees face-to-face at this zoo for native species.

Visit these gentle, bell-bottomed, exquisite equines at the home of North America's first Gypsy Vanner horses.