Handsomely crafted representations of our round planet.

Macabre museum devoted to historical Viennese murders.

The final resting place for the remains of 143 Habsburg royalty.

The beautiful baroque library of the Hapsburg empire.

A crumbling World War I fort that is reached through a series of concrete tunnels.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

This one-time health resort was used by aristocrats around the world.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

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

Stockholm's narrowest alley is barely over two feet wide.

This statue, deep in a Swedish forest, is all alone, just like the renowned recluse would have wanted.

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

Enigmatic bug-like sculptures mystify drivers along a Swedish highway.

Frequent fliers welcome in this airplane hotel.

Said to be one of Sweden's most haunted places, this vicarage once even attracted a ghost-busting priest.

If there is one thing you don't want to be in Sweden during Christmas, it's a Yule Goat.

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.

A peat bog in southern Sweden provides a cozy and photogenic home for junked Volvos, Saabs, and the occasional American muscle car.

This luxury hotel suite is located deep in the bowels of an old mine.

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

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

According to legend, this boat-shaped henge is built over the grave of a mythic king.