This trio of stone spires claims to be the only preserved medieval execution site in Europe.

Stone carvings record the Norse myth of Sigurd, providing a glimpse into Scandinavia's transition from paganism to Christianity.

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

Ancient burial grounds of the wealthy.

A nightly tradition fills the streets of Flogsta with a collective scream.

No one knows who's responsible for decorating this tunnel with stuffed animals, but the people love it enough to protest their removal.

This chimerical bridge/tunnel appears to dead end right into the sea.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

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

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

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

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

The world's first ice hotel is still one of the most elaborate and beautiful.

The world's largest model of our planetary system.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

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

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

An artist's mausoleum with a haunting echo.

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

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

Home to three historic ships from the age of Vikings.

An intricately carved Viking church overlooks a glistening fjord.