It's always summer at the beach inside this former airship hangar.

Hamburgers are intensely proud of their tunnel beneath the river.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

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

One of the most easily accessible examples of the rare 1960s UFO houses.

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

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

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

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

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

An elevator into the Baltic Sea.

Terrifying derelict military hospital once housed a recuperating Hitler.

No need to strap in for a "ride" on this walkable roller coaster.

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

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

This historic stone bridge has an entire neighborhood clinging to its sides.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

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

Berlin's old airport.

Floating swimming pool within a moored vessel.

An intricate and amazing house built by architect Karl Junker.

Super-heavy Nazi architectural experiment.

A church filled with the bones of hundreds of virgins martyrs—or so they say.