An ancient Egyptian temple in the middle of Madrid, Spain.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Thousands of birds nest in the cliffs while arctic foxes prowl below.

The largest cave in Northern Europe.

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

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

Research station devoted to mysterious floating lights seen in a Norwegian valley.

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

Norway's national monument to fallen seamen.

This Arctic mining town is home to a cat that's spent years masquerading as a fox.

The world's northernmost ice hotel.

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

Norway's oldest cathedral still in use.

At this Arctic outpost, get to know members of the indigenous Sámi community and meet their herds.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

One thousand trees were planted in Norway to be used to print books a century from now.

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

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

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

Cold storage for agricultural biodiversity.

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