This impressive collection of skulls and bones was gathered by an ex-zookeeper who took advantage of a pig plague.

The prototype for all Nazi concentration camps.

One man's personal kunstkammer, museum and shop.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

The footprint of a frustrated devil in Munich's Cathedral.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

This one-time health resort was used by aristocrats around the world.

Each year melting snow turns these Austrian hiking trails into scuba zones.

The personal charnel house of Anton Bruckner.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

Meet the bronze beloved pet to a family of famous peeing statues.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

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

Take a walk in a recreation of ancient Rome.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

This abandoned Belgian fortress is purposefully being left to nature.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

Descend into the tunnels to experience the life of a coal miner.

A Belgian self-built tower inspired by the Bible and ancient civilizations.