One of downtown Berlin's last reminders of its Communist past.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

An elevator into the Baltic Sea.

The prototype for all Nazi concentration camps.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

These 18th century gardens tell a rocky story of the son of Odysseus.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

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

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.

A restaurant and observation deck built in a unique broadcasting antenna.

Living trees form the structure of an open-air palace.

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

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

A small but immensely extravagant palace built by the "Night King."

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

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

This "floating railway" is one of the world's oldest monorail systems.

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

Super-heavy Nazi architectural experiment.

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

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