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

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

The most visited, and possibly most controversial, museum in Germany.

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

One part local history, 99 parts gruesome haunted house.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

The first museum in the world devoted to sexual gadgetry.

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

This massive blockhead sculpture hides an entire library.

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

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

This orchid sanctuary protects countless varieties of the flower, from the huge to the microscopic.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

This automated sculpture of two men peeing will spell out text messages with their micturition.