Unfortunately, you can no longer spend a night in this single-person treetop hotel.

This 2,000-year-old stone maze is one of the oldest in the country, but its purpose is still a mystery.

A large collection of ancient runestones decorates this university courtyard.

This restaurant gives a new meaning to farm-to-table cuisine.

A tiny village is home to the world's only diner completely devoted to the many varieties of traditional Swedish dumplings.

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

The dome-shaped reservoir of this old water tower produces unique acoustic effects.

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

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

From under the bed of one of the co-founders, this server helped launch the notorious file-sharing website.

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

This Scandinavian island is the site of the first modern observatory.

This pyramid in southern Sweden houses the remains of an eccentric nobleman, who spent his life doing whatever he felt like doing.

Gravity seems to fail at this intriguing Swedish attraction.

This micronation's flag honors its favorite drink, Kaffegöken, or "cuckoo-coffee."

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

Sweden's oldest street has not changed for nearly a millennium.

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.

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

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

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

A former suicide bridge is now accumulating symbols of love instead of a body count.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.