Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

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

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Tens of thousands of tiny bottles stuffed with various items.

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

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

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

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

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

Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

Longest fortress system anywhere in Europe.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

An ethereal glowing blue ocean cave in Croatia.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

The haunting ruins of a military fortress turned astronomical observatory sit on a Sarajevo mountaintop.

Yugoslavia's biggest underground airport lies in ruins.