A mocking tribute to the past and modern leadership of Prague.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

The oldest wind turbine in Europe, constructed by a group of friends in 1932.

Brought to you by the makers of fiberglass dinosaurs.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

Poland's oldest salt mine has nearly everything one needs to live underground forever.

An underground city of salt.

This man-made mound monument was built out of soil from all across the Polish empire.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

Floating swimming pool within a moored vessel.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

An eerie, derelict amusement park in Berlin.

Started as a kitchen garden, now the second largest botanical garden in the world.

Model Trains and Much More in Hamburg.

1% of Greenland's entire population used to live in this single building, which is now slated for demolition.

Old Danish castle immortalized in Shakespeare's Hamlet.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

The largest of London's subterranean rivers and once a mad, bad center of London life.