This bridge is so steep it looks like a rollercoaster.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

The first plantation museum in the United States to focus on the lives of enslaved people.

A local dive where religious kitsch, Southern identity, and queer culture collide.

The legacies of two historic Black American institutions live on in this unassuming brick building.

The private island of Yale's elite Skull & Bones society is kind of a dump.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The original movie set for the home of 'Star Wars' hero Luke Skywalker.

An abandoned film set location for a remote spaceport in a galaxy far, far away hides in the Tunisian desert.

One of the world's tallest, oldest, and most disgusting chocolate cascades.

At the right time of day, sunlight floods through the roof of this cave and illuminates the small pavilion hidden within.

A road runs through the middle of this small Austrian chapel.

A regular looking rock with an unbelievable history.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

This dreamlike museum is filled with the works of an influential surrealist artist whose name you may have never heard.

Opened in 1911, this small shop is the oldest ongoing establishment in St. George.

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A Caribbean chef recreates his enslaved great-great-grandmother's dishes inside the home she purchased after buying her freedom.

Designed as a labyrinth, this subterranean prison was crafted without bars or doors.

Abandoned businesses, homes, and rusted cars are all that remains of this stopover town.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

The oldest home in Huntington Beach, the farmhouse is a monument to the region's pioneer past.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.