This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Walk in the footsteps of the gods and straddle two tectonic plates.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This Bronze Age burial mound used to be called "Robin Hood’s Piss-Pot" until it was renamed by spoilsport Victorians.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The undercroft is a spectacular example of medieval Cistercian architecture.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

The oldest inn in England served brew to the crusaders.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

These abandoned coal mine towers near Sherwood Forest might soon boast the U.K.’s longest zip-line.

Stonehenge has nothing on Castlerigg’s views.

The centuries-old obelisk may have inspired J. R. R. Tolkien.

This strange moor has a song written about it, Bronze Age carvings, and an alien sighting.

Fascinating town where normal life interfaces with the occult.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

A man has revenged his true love's betrayal through tears and stone genitalia.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.