What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

This garden houses the remains of the ancient Greek port of Marseille.

A French library that makes sure its love of books is writ large... giant in fact.

Balconies that have a most unusual accent.

The ruins of a medieval castle linked to the murderous French lord that inspired the famous legend of Bluebeard.

The sunken structure looks like the victim of a catastrophic flood.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

Home to the "Rat King" of Nantes and other wonders of the natural world.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

Floating swimming pool within a moored vessel.

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

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

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

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A museum dedicated to a Cold War era sausage.

This classic restaurant features a gorgeous mirror-clad room.

A slice of central Asia in the middle of Berlin.

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

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

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