A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

A quaint Russian village in the middle of a German metropolis.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

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

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

This 600-year-old home seems to defy physics.

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

This unique Renaissance castle was turned into a home for Nazi occultism.

This German bone house contains the remains of some 20,000 souls.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

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

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

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

An elevator into the Baltic Sea.

The prototype for all Nazi concentration camps.

Terrifying derelict military hospital once housed a recuperating Hitler.

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

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.