Places PT Barnum Wants to Go

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

It's 2 billion years old!

Natural arch offers panoramic views of Yangshuo's karst hills.

Unique geological formations in China, featuring some suggestive shapes.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

A 30-acre garden inspired by the principles of modern physics.

The world's largest church atop a political fault line.

For centuries, Jeddah’s old town was a major trading port and a point of entry for Hajj pilgrims traveling by sea.

Throughout this South Korean village, homes and businesses are covered in fantastic handpainted murals.

The only place to see live frogs don pigtails and top hats, then eat their scrumptious legs.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

Stunning wetlands ablaze with pink lotus flowers.

This vanilla farm serves its crops at an on-site café.

Adherence to strict Jewish laws is required to enter this ultra-conservative New York village.

Once the most densely populated place in the world, this island is now a ghost town.

One of the only places where Earth’s mantle lies above water.

The most remote tree in the world is more than 170 miles from its nearest neighbor.

The most alien-looking place on Earth.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

This family tattoo parlor has been inking religious pilgrims in the Middle East for 700 years.

Fascination continues to surround one of history's most infamous shipwrecks.

A pilgrimage around a forbidden peak sacred to four faiths.

A sliver of 19th-century Germany sits on the shore of a Chilean lake.