This army of concretions is an unexplained geological phenomenon unlike anything else in the world.

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

Vaucanson's most famous automaton, brought back to life.

When the imprisoned pope's remains were finally returned to the Vatican, his heart stayed behind in France.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

At this monastery, monks make raw-milk cheese and use excess whey to create methane that powers their hot-water system.

A fortified palace in the shape of a ship on the Thiou river.

A statue of the Swiss cartoon character stands outside the school that inspired his creator.

This statue of a Hindu cosmic dancer at CERN is a metaphor for modern physics.

The remains of this castle, known as the Witch’s Eye, watch over the Thur Valley.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This "social palace" housing complex created a relatively stable and self-contained worker's society... for a time.

A 141-foot wave of crashing lumber guards the entrance to the Grand Place in Mons.

Petting this mysterious iron monkey supposedly brings good luck.

Located in the house where Gustave Flaubert was born, this odd museum has more to do with medical grotesquery than the Western novel.

A French museum of wrought iron.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

The famous winding walk at Chartres is surrounded in mystery and myth.

A total of 22 tiny bridges cross this canal of the Yvette River, forming a unique trail.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

A small museum of antique transport that's a must-see for bicycle lovers.

A garden of massive sculptures sits in Jean Lindard's backyard.

Village situated on a narrow volcanic escarpment.

This amazing piece of modern art honors the hundreds of fishermen killed during Cambrils' "year of misfortunes."