Norway's oldest cathedral still in use.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

The world's northernmost aquarium looks like it has fallen over.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

This Arctic storage facility is a secure backup for agricultural biodiversity.

Home to three historic ships from the age of Vikings.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

It houses the remains of a 17th-century version of the Titanic.

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

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Walk 2,300 feet above the ground on the "Troll's Tongue."

Daily jousts and dancing barrel makers in Munich's mechanical clock.

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 stunning concert hall has become a symbol of Iceland's national recovery.

Three columns of volcanic rock shoot out of the ocean.

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

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

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

An encyclopedic collection of mammal penises.

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