An isolated village literally built into the crevices and rock formations of a mountain.

Long tunnels run under the ancient chariot racing circuit to the tower.

Stunning Roman aqueduct used for 1900 years and still standing.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Copenhagen's celebrated theme park and gardens.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The lost American era of gunfighters, bandits, Indians and steam trains is recreated in Sweden.

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

If there is one thing you don't want to be in Sweden during Christmas, it's a Yule Goat.

This roundabout was renamed in honor of the Swedish king's royal fender-bender.

Not quite the cultural gateway between China and Sweden its designer imagined.

The remnants of a record-setting industrial bucket system can still be found dotting the Swedish countryside.

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

Ancient burial grounds of the wealthy.

Sculpture of a bus made from wrecked passenger cars.

This wonky bit of historical taxidermy is experiencing a second life online.

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

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

18th century opera in its original splendor.

This secret facility trained seals for the Swedish navy during the Second World War.

Frequent fliers welcome in this airplane hotel.

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

"Only the dead get off at Kymlinge."

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