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

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

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

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

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

Home to three historic ships from the age of Vikings.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

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

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

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

Tens of thousands of tiny bottles stuffed with various items.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

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

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.

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

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

An unusual round church in London with a Templar past.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

For six months of the year, three giant mirrors direct a pool of sunshine onto this otherwise occluded town.