This canyon is comprised of gorgeous waters and magnificent basalt columns.

This tiny cabin was home to one of Iceland's most famous painters and was the only land he ever owned.

A black sand beach where glacial fragments wash ashore and look like sparkling diamonds.

Three columns of volcanic rock shoot out of the ocean.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

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 eye-popping Icelandic crater lake is surrounded by red volcanic rock.

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

It's believed King John of England stayed at this 13th-century castle before riding off to sign the Magna Carta.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

One of the most studied Iron Age settlements in Europe.

The longest canal aqueduct in England was built without a plan to get water past the moving boats.

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

The longest and tallest aqueduct in Britain can actually be sailed across.

In the U.K., a historic workhouse shines a light on the early, harsh treatment of the poor.

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

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

The longest and steepest staircase locks in the United Kingdom.

An intriguing three-sided folly is a testament to one man's devotion to Catholicism and the number three.

The intended purpose of this unfinished Elizabethan building remains a mystery.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

An engraved stone in a village church claims to be the grave of a minuscule folk legend.