This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

An oddity shop inspired by the history of the circus.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

Prehistoric animals decorate this popular outdoor park.

The name of the only golden Buddhist temple in Korea translates as "the temple that protects the country."

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

Tubing through a cave lit with glowworms is a magical underground experience.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This cemetery features modernist statues as strange as its name.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Where monkeys run wild and the humans are caged.

A luxuriant botanical garden below sea level.

A tribute to Ponce de Leon's supposed quest for eternal youth.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Town of spiritualists and mediums in Florida.

Japanese gardens dedicated to the Japanese farmer that refused to throw in the trowel.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.