Ruins of a German Castle on top of a towering stone pillar.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

The yawning maw of this pagan visage is said to bite off the hands of liars.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The fairy tale castle of the "fairy-tale king."

Medicinal spa created with the discharge from a geothermal energy plant.

An eerie, derelict amusement park in Berlin.

A church of bones, decorated with 40,000 human skeletons.

Europe's second largest ossuary wasn't discovered until 2001.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This beautiful, historic church looks like something out of a simpler past.