Historic medieval fortified city in southwest France.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

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

Hundreds of hidden passageways weave through the old quarters of Lyon.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

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.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

A crumbling island fortress that seems to be covered in a field of stone crosses but is simply incomplete.

What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

For a brief time in 1960s France, families could climb into a tiny submarine and be pulled along an underwater journey.

Longest canal tunnel in the world, abandoned in the 1960s.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

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

This ancient theater was once the home of fierce gladiatorial battles.

A winery built on the site of a Gallo-Roman estate uses historical tools to recreate ancient vintages.

A unique underground structure dating back to the 1st century BC.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

The first green space constructed on an elevated viaduct.