Nearly every wall in this French villa has been "tattooed" by artist Jean Cocteau and other famous painters.

A medieval military street hidden beneath a charming French fishing village.

A place to see how French aristocrats lived in the early 1900s.

This medieval Italian village was transformed into an architectural marvel by the famous "Papessa" Donna Olimpia.

The leathery remains of a woman who died in the 13th century now lie in a church named for her.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

A stunning fountain depicting a mythological she-goat carved directly into the rocks on the grounds of a Renaissance palace.

This massive rock balanced for thousands of years being tossed here during a volcanic eruption.

Is this statue at Naumberg Cathedral the fairest of them all?

Living trees form the structure of an open-air palace.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

A Roman temple perched over an Italian town, forgotten several times over.

The ruins of an ancient fortification wall sit in front of and underneath this boutique hotel.

One of the oldest libraries in the world is still operating and contains the oldest existing document in the Italian language.

One of the world's largest collections of rare medical texts and ephemera.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

A pair of mysterious, unusually polished cave temples with an ancient gold legend.

This muddy wooded valley and the ancient structures it hides are said to be the favored haunt of the legendary Friar Tuck.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

A blunder resulted in these charming stone-lined streams becoming the target of a Nazi bombing.

Led Zeppelin wrote some of their most iconic songs at this little 18th-century Welsh cottage.

Nestled in Coachella Valley, this museum transports guests from the Mesozoic Era, to the land of Egyptian kings.

To fit bodies into this Renaissance crypt, they were first left to decompose in the crypt's rotting room.

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.