Stalinist skyscraper built with help of cryotechnology.

Some Moscow residents once claimed the bizarre, contorted mass of metal on top of the building was used to manipulate minds.

Dozens of padlock-trees along the Moscow River.

Moscow's imposing monument to the Space Age.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Europe’s most powerful hot spring supplies the surrounding region with hot water.

Iceland: home to volcanoes, waterfalls and, apparently, Santa?

This stunning concert hall has become a symbol of Iceland's national recovery.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

A lonely beacon, precariously perched atop a remote sliver of rock.

Three columns of volcanic rock shoot out of the ocean.

This tiny museum's sizable collection is jammed into a former underground public toilet.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

An encyclopedic collection of mammal penises.

Climb right into the heart of this colorful Iceland volcano.