Once the hottest nightclub in France, Amnesia now lies in ruins after a 2000 bombing.

The highest peak in mainland Spain is said to be the final resting place of a Muslim king.

The biggest museum dedicated to insects in North America, one of the largest in the world.

1920's reinforced concrete church by architect Auguste Perret changes the face of modern design.

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

Pay your respects to a folk-punk legend.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

This modern monument to pagan belief looks like it was transported straight from ancient times.

The largest collection of death masks in Ukraine.

The deepest metro station in the world.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Vikings and Evangelicals have both had a hand in this replica medieval church.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

This Scottish bridge seems to compel dogs to leap to their death.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This subterranean necropolis holds three floors of antler-dug grave caves.

These disused steel furnaces are now haunting ruins that may one day be a national park.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.