This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

Cold war icon and onetime "hole" in the iron curtain.

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

The footprint of a frustrated devil in Munich's Cathedral.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

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

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

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

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A striking 12th-century-style castle built on the edge of a cliff.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

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

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

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

The highest point in Belgium is a staircase to nowhere.

Hiding the longest subterranean river known in the world.

It's home to the antenna that received the first images of Neil Armstrong walking on the moon.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

Occult books, tarot, oddities.

Tiny artwork tucked within glass letterboxes form this hidden gem of an art gallery.

A beautiful 1920s tower filled with local hidden gems.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

The decommissioned submarine is now the symbol of a small, inland Australian town.