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

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

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.

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

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

The world's largest model of our planetary system.

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

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

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

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.

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

The internet as provided by a James Bond villain.

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

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

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

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

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

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

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

The remains of a majestic house that was once stood in the crosshairs of the Irish Republican Army.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.