A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Ten shipwreck-shaped chalets lie along the sand dunes on Namibia’s Skeleton Coast.

Quirky movable sculptures have been racing through the town since 1983.

An abandoned World War II bunker is part of a chain that runs throughout Washington.

Tour the original street level of Port Angeles, buried underground in 1914.

A magical sanctuary of mythological statuary.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

Geothermal waterfalls in Tuscany.

Nine caves filled with recently-discovered archaeological finds under the houses and the streets of the most ancient district of an old town.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Water and windows define this defensive Italian well.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

First founded in 1472, this is the oldest bank in the world. Its history may explain why we call financial institutions "banks."

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

This 21st century cabinet of curiosities includes dinosaur bones, moon rocks, film memorabilia, and more.

This 16th-century monastery has been turned into a surrealist architecture compound.

Stumbling upon this whimsical wooded garden is like stepping into an enchanted forest full of philosophical musings.