Large military radio station without transmitting towers.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

An aluminum skeleton brings Chinese mythology to the French shore.

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

This massive blockhead sculpture hides an entire library.

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

Ghosts of France's colonial past.

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

Sleep in a climate-controlled plastic bubble for the night.

An enchanting work of outsider art, full of whimsical sculptures and carvings.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

These crumbling Nazi artillery bunkers are now fair game for massive graffiti projects.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

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

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

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

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

An art world insider finds himself battling for his artistic home.

A French library that makes sure its love of books is writ large... giant in fact.

France's high-tech, future-themed amusement park.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.