Stretching across western Newfoundland lies an 1,100-mile expanse of the Appalachian Mountains, a picture-perfect corner of the Canadian wilderness: Gros Morne National Park. Embark on a sensory adventure through a land of glacier-carved fjords, cascading waterfalls, and soaring cliffs.

Stretching along 600 miles of Northern Chile's Pacific coast is the dryest non-polar region on Earth: the desolate Atacama Desert. From menacing volcanoes to wondrous natural geysers, experience one of South America's last great wild lands, one that few have ever laid eyes on.

Beneath the blazing Bolivian sun lies a land of extremes, ranging from desolate highland plateaus to dormant volcanic landscapes. But the true wonder of this astonishing land is Salar de Uyuni--an endless salt flat so blindingly white it can be seen from outer space.

The desert landscape of Utah is home to one of the world's most spectacular and unforgiving natural settings: Zion National Park. A 100,000-square-mile marvel of deep canyons, majestic arches, and towering sandstone walls, it's a land shaped by unimaginable geological forces over millions of years.

Take in the Bahamas as you have never seen them before, from towering pine forests to dense coastal mangroves. The most daunting and unexpected attractions, however, are its flooded inland caves--geological wonders adorned with otherworldly stalactites that shimmer in the darkness.