Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

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

It was meant to help transport wounded soldiers to a secret underground hospital.

This castle ruin in the middle of nowhere is a gem for wildlife enthusiasts.

This Swedish automobile graveyard is a beautiful gallery of decay, but woe be to any who would steal a souvenir.

A forest of immensely tall and unusually straight oak trees planted nearly 200 years ago to build naval ships that never came to be.

Although rarely used, there is still a hidden room for the royal family at the Stockholm central station.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

A Japanese video game arcade hides in the back of a Swedish pool hall.

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

A peat bog in southern Sweden provides a cozy and photogenic home for junked Volvos, Saabs, and the occasional American muscle car.

The single richest source of elemental discoveries in the world.

Iron Age grave stones and Viking burials, a short drive from Gothenburg.

A museum dedicated to the history of psychiatric treatment featuring a gallery of art made by patients.

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

Stockholm's narrowest alley is barely over two feet wide.

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

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.

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

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

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

A golden egg-shaped sauna in the Arctic tundra.