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

The world's largest underground iron ore mine.

The second-largest collection of runic calendar staffs in Sweden.

A small church in Uppsala hides the grave of a renowned 18th-century astronomer.

Legend has it this spring formed at the spot where a medieval Swedish king was killed.

Locals perched on icy thrones brave frigid temperatures during this bizarre winter tradition.

A rare rune stone dedicated to a woman.

A large collection of ancient runestones decorates this university courtyard.

Legend says this fabled well held part of a mythical Norse tree.

Known locally as the Jungfrutornet, this Medieval tower hides a dark legend.

This tiny Swedish troll protects the land and all who wander within it.

His body was found mysteriously preserved in a Swedish mine over 40 years after his initial disappearance.

This mysterious runestone embedded in a church wall is linked to the medieval cult of Saint Erik.

Gravity seems to fail at this intriguing Swedish attraction.

A Viking man's tribute to his brother stands in Gävle's oldest church.

Sweden's southernmost prehistoric rock art is hidden just outside Gothenburg.

This little gallery is devoted to one small town's passion for a very special cheese.

A Bronze Age stone ship said to be the grave of the mythical founder of Gotland.

The official meeting point for the oddly named governing assembly of ancient Sweden.

Winter roadtrips are a little more exciting on this seasonal, slippery expansion of Sweden's national highway system.

A former top secret military tunnel is now stuffed with snow and open year-round to skiers.

The charming storybook building now houses a small police museum.

Walking through this narrow gorge will make you feel like you've fallen into a fairytale landscape.

A 12th-century church with a medieval fresco and an intriguing “Greek runestone.”