Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

The world's largest model of our planetary system.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

This Stockholm light tower can be controlled by anyone with a smartphone.

Stockholm's deepest subway station is also a stunning ecological wonder.

The library's graceful rotunda is like a bibliophile's temple.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

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

Welcome to the greenest place in Greenland.

No longer the only, but definitely the oldest, fountain in Greenland.

In a country where driving from one town to another is literally impossible, this small stretch of gravel is a remarkable feat.

The world's northernmost flowers cling tenuously to life on desolate Kaffeklubben Island.

One of the world’s most dangerous roads may be this abandoned shore route in Iceland.

A rugged hike leads to a breathtaking waterfall, once thought to be the tallest in Iceland.

Dozens of large, brightly-colored paintings adorn the walls of the "street art capital of Iceland."

A geothermal paradise with bubbling mud pools and bright blue hot springs.

The exhibition explores the Icelandic city's Viking Age history.

Europe’s most powerful hot spring supplies the surrounding region with hot water.

This natural rock formation features seemingly unnatural vertical ridges that have been blamed on elves.

Iceland's tribute to its thankless civil servants.

Outlaws, hot springs, and tragedy have all left their mark on this ancient road in the Icelandic highlands.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.