This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

Site of one of World War I's most horrific scenes.

A haunting collection of the vanished and disappearing natural world.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The celebrated eyesore created by starry-eyed sweethearts.

The famous winding walk at Chartres is surrounded in mystery and myth.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

Breathtaking and huge 430 year old maps of Italy.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Copenhagen's celebrated theme park and gardens.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

An often-shuddersome journey into a low-tech, robotic themepark.

Balconies that have a most unusual accent.

Walk through living pictures and music in the Cathedral of Images.