The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

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

The world's largest reflecting pool is just two centimeters deep.

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

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

This stunning natural double arch, the largest in the Alps, went undiscovered until 2005.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Avant garde house of Pierre Cardin on the Cote d’Azur.

Beautiful carved tunnels.

This professional clown's home is an outsider art wonderland.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

An aluminum skeleton brings Chinese mythology to the French shore.

Historic medieval fortified city in southwest France.

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

This massive blockhead sculpture hides an entire library.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

A subterranean shelter remains intact under a busy Paris railway station.

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

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

Science fiction's grandfather has a fittingly marvelous tomb.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

Statue of death tucked in the University of Medicine courtyard.

Paris' fabled purveyor of exotic taxidermy and natural history curios.