What was once a unique system of urban elevators is turning into a mechanical ruin.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

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

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

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

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

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

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

A museum founded to reflect on and remember the human rights abuses under Chilean dictator Augusto Pinochet.

This sculpture meant to honor the bravery of the Indigenous Mapuche people of Chile proved controversial.

The ominously named cave is home to some remarkable ancient art.

This large round boulder is said to emit spiritual power, but it may just be magnets.

This was once the center of the Birdman cult, and is now a World Heritage Site.

The largest stone moai on Rapa Nui.