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

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

Walk in the footsteps of the gods and straddle two tectonic plates.

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

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

Once the home of a hermetic monk, this cave now houses a small church.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Bathe in these natural hot springs located high in the Andes Mountains.

Enormous array of antennae fill a desert valley.

These overlooked ruins give an intimate look at the Inca Empire's urban planning prowess.

This metal tower in the desert provides views of a handful of Nazca geoglyphs.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

This unimaginably large pile of sand near Nazca is one of the tallest dunes in the world.

These delicate ruins need more tourists to keep them from fading away.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

Ain't no party like a ghost town party.

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

The Uros people live on floating reed islands in lake Titicaca.

A remarkable geological formation resembling a forest made of stone.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.