France's most famous cemetery, with some of its most curious tombs.

Berlin's old airport.

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

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

An old department store turned Nazi prison turned artist commune.

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

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

Ruins of a German Castle on top of a towering stone pillar.

Hear the quietest sound from across the dome.