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

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

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

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

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

A floating underwater hotel, created by a Swedish artist.

A golden egg-shaped sauna in the Arctic tundra.

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

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.

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

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.

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

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

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

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

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

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

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

It houses the remains of a 17th-century version of the Titanic.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

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.