Notorious artist squat renovated into legal studios.

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

Countless grotesque faces stare out from this eerie Prague art wall.

A Jenga-style cylindrical tower of books that appears to go on forever.

A slice of central Asia in the middle of Berlin.

One of the world's heaviest musical instruments towers within a popular urban park.

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

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

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

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

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

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

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

Art and a pun, all in one.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.