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

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Former hunting lodge of a duke who was an avid collector of impressionist works.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Inside a former cabaret, seven floors of erotic art.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A little sculpture with a large wardrobe.

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

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

18th century underground pilgrimage site, dedicated to a Saint that did something...

One woman's decades-long obsession with the "La Fée Verte."

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

The only remaining collection of flayed figures made by French "madman" Honoré Fragonard.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Abandoned railway line circling the city of Paris.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

An iconic and eccentric bar for "Manouche" Jazz music keeps expanding its space—and its influence.

A museum of carnival attractions where you are invited to ride the rides.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

The curious underground history of keeping Paris clean.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.