Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

A French artist's vague warning hangs over Belleville.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

A once drab public housing estate is transformed into a colorful gallery of trompe l’oeil murals.

Walk through living pictures and music in the Cathedral of Images.

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

These rustic holiday homes are made from discarded fishing boat hulls.

This building’s ghostly exterior reflects its former lives as a prison, school, and funeral home.

A small house sits between two huge rocks, with its back to the sea.

This workshop and small museum is dedicated to tiny, delicate figurines that began as a subversive craft after the French Revolution.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

A treasure trove of fine art is hiding inside this small medieval abbey in Gascony.

This 12th century, partially destroyed, abbey has had several owners and was seized during the French Revolution.

This mosque was based on Sub-Saharan Islamic architecture and created for the Senegalese Tirailleurs.

The encased skull that is widely believed to belong to St. John the Baptist.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

This 18th-century sundial was designed to calculate the date of Easter each year.

A medieval church built into an ancient cave.

This abandoned church in central Lyon is missing its front stairs.