Rising from the sea like a stone monster.

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

The oldest steel ship in Iceland has been beached for years and is now a rusting ruin.

A stunning Victorian abbey and walled garden on a lakefront.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

This massive monument has been telling the time for 150 years—at a slight angle.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

The highest peak in Northern Ireland is topped with a stone tower and haunting burial mounds.

This enchanting natural park is a magical example of a temperate rainforest in Europe.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

A spectacular walk on the flank of a gorge.

This panoramic lift provides a futuristic ride up San Pedro Mountain.

This Canary island is a quintessential example of nature’s beauty, and its unbridled fury.

A historic Christian shrine nestled within a spectacular natural cave.

"Satisfying" is a good way to describe these beautifully aligned rows of Spanish mills.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This mountaintop observatory is home to one of the world's largest reflective telescopes.

Giant granite sculptures representing family on the northern coast of Spain.