A living descendant of the famous tree that helped Isaac Newton develop the theory of gravity.

The world's only above water sand volcano, believed to once be the bathtub of a priest.

This former peat factory was transformed into an observatory before being abandoned once again.

Is the centuries-old enigma of these mysterious "perjurer's footprints," where nothing ever grows, attributed to natural phenomena or to the realm of folklore?

A geological wonder that helped fuel myths of trolls and giants.

A Very Low Frequency transmitter you can tune in on your PC.

An impressive collection of massive radio satellites.

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

This declassified Cold War bunker hosts a large collection of Swedish aircraft.

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

The remains of a German plane still sit in the Norwegian wood where it crashed in 1942.

The world's largest underwater restaurant is submerged off the southern tip of Norway.

A stunning silver lining to global warming's gloomy cloud.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.