An ancient Viking runestone hidden in plain view in Stockholm's old town.

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

A golden egg-shaped sauna in the Arctic tundra.

A man has revenged his true love's betrayal through tears and stone genitalia.

The second oldest anatomical theater is housed in a museum of curiosities.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

A floating underwater hotel, created by a Swedish artist.

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

The world's largest model of our planetary system.

Art becomes an enchanting part of the environment at this wooded sculpture park.

A reconstructed farm shows what life was like in Norway 1,500 years ago.

For six months of the year, three giant mirrors direct a pool of sunshine onto this otherwise occluded town.

Norway has built what may be the world's most beautiful public toilet.

Crawling into this primordial cave may feel disconcertingly familiar.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

A stray meteor left this picturesque hole in the Australian outback.

A meteorite-bounded town in Bavaria.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

A regular looking rock with an unbelievable history.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.