Puppet theater and museum holding a collection of more than 300.

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

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

A wunderkammer of mysterious objects and stories.

Art and a pun, all in one.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The most visited, and possibly most controversial, museum in Germany.

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

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A musical instrument played by the sea.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

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

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

The first mosque in the world to receive electricity.

Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

This historic cemetery was inaccessible for several years due to dozens of land mines.