The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

The world's most charming instant portrait studio also happens to be its smallest.

This Norwegian satellite station provides ground services to more satellites than any other facility in the world.

The rusted hull of a WWII German destroyer pokes above the surface in a Norwegian fjord.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

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

Large military radio station without transmitting towers.

Citizens of Norway want to gift the peak of Mount Halti to Finland for its 100th birthday.

Ruins of two abandoned stations destroyed by the power they sought to harness.

The former home of Norway's greatest romantic composer.

A little Lady Liberty stands in the Norway town where the copper for the real thing came from.

Europe's only museum solely dedicated to the history of whaling still has a fully-functioning whaling ship.

Once the scene of a young boy's home in revolt, this Norwegian island is now home to the world's first "ecological" prison.

The world's first and only escalator for lazy bicycles and their daunted riders.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

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

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

The last fully functional fortress of Germany's World War II Atlantikwall.

Mysterious man-made rock piles form an ancient cemetery on this rocky beach in Norway.