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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

Once used to protect important Roman trade routes.

The construction of this bridge dates back to the 15th century.

The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.

An abandoned canal route lies hidden under the streets of Manchester.

There's a strange stone hoodoo towering atop a wooded hillside and no one is quite sure how it got there.

One of the U.K's earliest public water supplies is within the "plague village."

Eyam took steps to quarantine themselves and keep the plague from spreading.

How did an Australian statue of the Bard of Avon end up in the Hungarian capital?

A relic of World War I that now exist as a piece of public art.

In 1396, two Scottish clans that had been violently feuding for centuries finally faced off in a bloody battle in this park.

Atop this arch, during the 16th-century, a sermon was given to those suffering from plague.

A pair of mosaics marks the spot where the last accused witch of Dundee was put to death.

A reportedly haunted parking structure with alleged links to Jack The Ripper.

Dedicated to one of the nation's worst engineering disasters.

Cut into a sheer cliff face, these stairs are the only way to reach a secluded Scottish harbor.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Named for its similarity to the tip of a violin's bow, this striking formation was created by millions of years of erosion.

Outside of Budapest, a reconstruction of a 16th-century fortress.

A former church that has been chronicling the Scottish island of Islay's rich history since the 70s.