France's most famous cemetery, with some of its most curious tombs.

A German apartment building hosting as many trees as human occupants.

Amöneburg is a town perched on top of a basalt mountain in the middle of an ancient meteor crater.

Carved fountains poignantly placed in parks and in front of special monuments.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

The world's only silo that was topped by two revolving restaurants has unfortunately been demolished.

World's only telecommunication tower with a wooden pinnacle.

A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

Legendary site where an evil bishop was devoured by rodents.

This "floating railway" is one of the world's oldest monorail systems.

Largest illuminated advertisement sign in the world.

Twisted buildings adorn the banks of the Rhine river.

Christ's blood preserved in a Belgian town.

Climb inside an iron crystal magnified 165 billion times its normal size.

Lavish royal estate punctuated with heated greenhouses.

A little sculpture with a large wardrobe.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Hiding the longest subterranean river known in the world.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

Rummage through this sunken ship, but leave your scuba gear at home.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

Elevated freight railway turned wildly successful urban park.

An artist's cute bronze subway sculptures belie his violent artistic past.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.