Buddha and Jesus tower over this French mountainside headquarters of the Aumism religious cult.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

This church sits upon a peaceful hill and a long, turbulent history.

The man who introduced reinforced concrete to the world demonstrated its genius by using it to build his own house.

One man's desire to transcend art led to the construction of this outsider chapel.

One of the oldest masonic museums in Paris.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Museum in a swimming pool where the water still flows.

A Gothic cathedral created from volcanic rocks.

This wooden hotel is a temple to German sustainability and forest conservation.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

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

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

A German apartment building hosting as many trees as human occupants.

An intricate and amazing house built by architect Karl Junker.

A magical, if a bit tacky, 1960s castle conjures up medieval fairytales and Greek mythology.

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

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

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

The world's northernmost flowers cling tenuously to life on desolate Kaffeklubben Island.

Small Island off the coast of Greenland.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.