An obscure waterfall that looks like something out of a fantasy novel.

This former coal gasification plant found a curious second life as a popular public park.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Make your reservation to have coffee with some kitties.

Stroll through a wonderland of stupendous moss-covered trees.

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

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

A bike train runs along a disused railway line through the tranquil French countryside.

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

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

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

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

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

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

This is not your typical jungle gym.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

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

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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