A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

This conical hill was built as a testing ground for an engineer known as the Glider King.

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

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

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

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

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.

An eerie, derelict amusement park in Berlin.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.