According to legend, this boat-shaped henge is built over the grave of a mythic king.

Said to be one of Sweden's most haunted places, this vicarage once even attracted a ghost-busting priest.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

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

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

A floating underwater hotel, created by a Swedish artist.

It's always game time at Stockholm's only museum devoted solely to video games.

Micro-nation based around a nine-story high illegally built tower.

A Swedish farm is the world's only producer of the rare, creamy delicacy that is moose cheese.

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

Crooked windswept pines give this old forest an enchanted and magical look.

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

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

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

Sweden's "good old days" painstakingly re-created in a model village.

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

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

The world's largest model of our planetary system.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

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

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

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

Featuring Zürich's only authentic 14th-century plague doctor's uniform!