Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

A brilliant turquoise lake in the mountains.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

This 'Lake of Fire' sits in the caldera of a 15,000 year old volcano.

This overgrown mountain village has been abandoned for nearly a century.

This marvelous array is one of the largest collections of mechanical instruments in Europe.

One of England's oldest stone churches and the birthplace of the "father of English history."

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A serene desert oasis speckled with ancient artifacts.

A moody and picturesque riverside ruin overgrown with vegetation.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

The site of the first medieval crusade that pitted Christians against Christians.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

Its dark depths conceal millions of rare, delicate crystal formations.

In this brilliant blue spring in Germany, legend has it that a sad mermaid learned to finally laugh.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

This army of concretions is an unexplained geological phenomenon unlike anything else in the world.

The winter home of thousands of beautiful snow geese and sandhill cranes.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

This tiny traditional smokehouse is the only one left in this historic fishing port.

A group of glacial erratic boulders are improbably balanced on white limestone pedestals.