This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

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

A sulfuric martian landscape that looks far better than it smells.

The most powerful waterfall in all of Europe.

These enlarged egg sculptures represent the native birds of eastern Iceland.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Three columns of volcanic rock shoot out of the ocean.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

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

An encyclopedic collection of mammal penises.

Iceland's tribute to its thankless civil servants.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

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

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Perhaps the most scandalous statue of America's first president.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.