Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

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

Museum dedicated to the terror regimes of Hungary.

Once the home of a hermetic monk, this cave now houses a small church.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The history and future of cannabis.

Museum preserving torture methods from the past.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A slice of central Asia in the middle of Berlin.

A surreal museum of extraordinary industrial objects.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Medical history with an amazing, if frighting, collection of wax diseases on display.

The world's only museum devoted to the wonders of fluorescence.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

A unique hotel for the artistic soul.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.