The largest portal tomb in Europe has a capstone weighing around 150 tons.

A hugely vast Irish landscape of barren rock that stretches for miles.

The ruins of a medieval monastery named after a type of tree.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

The ancient tomb acts as a calendar that keeps perfect time.

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

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

This scenic Icelandic lava flow is named for a pair of Berserkers who were murdered, according to a famous Saga.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

Rising from the sea like a stone monster.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

A Wes Anderson-esque lighthouse that boasts magnificent coastal views.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

These enlarged egg sculptures represent the native birds of eastern Iceland.

A giant red chair bolted to a rock on a remote mossy hillside in Iceland.

A sulfuric martian landscape that looks far better than it smells.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

Three columns of volcanic rock shoot out of the ocean.