These 18th century gardens tell a rocky story of the son of Odysseus.

Blitzkrieg bop your way through Berlin's Ramones Museum.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

Where once there was a train station bathroom, there is now this German burger joint.

No need to strap in for a "ride" on this walkable roller coaster.

A stairway to heaven, or to nowhere at all.

A wunderkammer of mysterious objects and stories.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

This historic stone bridge has an entire neighborhood clinging to its sides.

"The most colorful grottoes of the world.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

An intricate and amazing house built by architect Karl Junker.

A striking 12th-century-style castle built on the edge of a cliff.

Terrifying derelict military hospital once housed a recuperating Hitler.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

Living trees form the structure of an open-air palace.

When the rain falls, this drain system turns into a musical instrument.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.