The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

Thousands of letters to Santa get delivered to this mailbox in Greenland.

In a country where driving from one town to another is literally impossible, this small stretch of gravel is a remarkable feat.

These eight mummies are the best-preserved human remains ever discovered in North America.

Greenland's first shopping mall also hosts the country's government.

No longer the only, but definitely the oldest, fountain in Greenland.

1% of Greenland's entire population used to live in this single building, which is now slated for demolition.

One Greenland town turned itself into an open air sculpture gallery with the help of a series of traditional stone artworks.

The world's seventh-largest coral reef contains an incredible amount of biodiversity.

Think you have a tough job? Try carrying 200 kilos through a cloud of sulfur down the side of a volcano.

Hundreds of Buddhas in a re-discovered Indonesian temple.

Three wildly colorful calderas top this otherworldly volcano chain.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

A sprawling nature preserve harbors the world's only living dragons.

An Elvis superfan built Denmark's own version of Graceland.

An "evil painter" included pointed symbols in this artwork to poke fun at members of the Danish Parliament.

This antique farmhouse is one of Læsø's rare seaweed houses.

A symbol for the opposition to nuclear power around the world.

This Danish park has celebrated the American independence day since 1912.

The largest of Denmark's seven mysterious round churches stands on an island in the Baltic Sea.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Denmark's famous pseudo-hill.