An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

The conquistador's former fortress is the oldest preserved colonial building in the Americas.

This eerie abandoned building with a dark history is said to be one of the most haunted places in the Philippines.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

This imposing 20th-century castle was abandoned before it was ever completed.

Inscriptions found in the Majella mountains reveal stories of resistance and rebellion after the unification of Italy.

A sixth-century Byzantine cistern hidden below a modern carpet store.

One of the world's largest pyramids stands within El Mirador, the "lost city of the Maya."

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

These colonial murals are a fascinating hybrid of Spanish and Indigenous aesthetics.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

An eerie abandoned gentlemen's club built for British officials during the colonial era.

A brilliant turquoise lake in the mountains.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Divers can encounter an abandoned warship encircled by a giant kraken submerged in the British Virgin Islands.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

The second-oldest garden cemetery in the U.S. was also a college brainstorm spot of Stephen King.

The designated Jewish quarter in Fez dates back to the 15th century.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

A haunting place that is now home to thousands of birds.

The only remaining place where you can play this century-old game for cash.

Coast along one of Japan’s mountain railways for coveted views of magnificent hydrangeas.