This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Petting this mysterious iron monkey supposedly brings good luck.

Building Men of War and Indiamen from Holland's Golden Age.

A taxus-tree to which Julius Caesar reputedly tied his horse.

The not-quite-incorruptible St. Bernadette is perhaps the most beautiful of preserved saints—with a little help from Paris.

A garden of flying flowers.

A moving memorial to the fallen and missing from WWI trenches.

The foundations of a forgotten fortress, wedged in between two streams.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Grotto replete with mystical designs laid out in glued shell mosaics.

Most prolific publishing house in the 1600s open to the public.

Climb inside an iron crystal magnified 165 billion times its normal size.

A little sculpture with a large wardrobe.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.