A tiny, forgotten park of surrealist sculptures in Angouleme.

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

This Corsican Neolithic site is full of pre-Roman megalithic structures that may or may not be penises.

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

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

This crumbling, graffiti-covered mansion sits tantalizingly within reach of the proletariat who frequent a public park.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

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

An icy lake tucked among jaw-dropping alpine panoramas.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

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

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

Two small chapels housed inside an ancient tree.

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

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

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

A long-disputed island that Denmark and Canada claim by periodically alternating flags and bottles of liquor.

This functional solar system model was inspired by the famous Eisinga Planetarium.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

This elegant arc of a waterfall marks a religious turning point.