A meditative space out of a fantasy story.

The half-mile long structure is so impressive, it even shows up on satellite images.

Most-visited and most-photographed slot canyon in the American Southwest.

Natural rock water slides hidden in the remote forests of northern Idaho.

This king penguin is a knighted brigadier of the Norwegian Army.

Everything you always wanted to know about borates is here.

The unusual lighthouse looms over waves of prairies with no sea in sight.

During Prohibition, the U.S. Congress had an "official" bootlegger, with his own Capitol Hill office.

What looks like missing grout is actually an old pub's peephole.

This English medieval castle is where King John died of dysentery.

One man's eclectic collection of treasures found at sea.

The etchings on this narrow channel between two islands bear witness to maritime travelers who have passed through since the Middle Ages.

Cherokee alphabet, proof of ancient North American Jews, or just a hoax?

The only remaining place where you can play this century-old game for cash.

This museum honors the young maritime hero who became an unexpected Victorian-era celebrity.

A hidden gem of a museum that lets you search for your own fossils.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

The world's tallest turtle riding the world's largest snowmobile.

A winding medieval path was used by mourners to carry their dead to the nearest church.

A bizarre house filled with an astounding array of collections.

A stretch of land where the sour-sweet vegetable is cloaked in darkness and grows so fast you can hear it crack, squeak, and pop.

A catapult rock from Gotland’s 13th-century civil war is still lodged in Scandinavia's best-preserved medieval city wall.

The only diamond mine in the world where you can keep what you find.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.