Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

An underground tropical garden sits inside a Paris Métro Station.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Medieval Danse Macabre Fresco in Northern Brittany.

This 18th-century pirates lair has been transformed into a museum and luxury event space.

Old vessels have been transformed into artistic canvases in this unusual cemetery.

Where the legendary wizard sleeps for eternity, according to Arthurian lore.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A self-built mosaic house and sculpture park.

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

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

The vast, legendary catacombs hold secrets much stranger than stacked bones.