Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A museum dedicated to the alleged Roswell Incident.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

A sprawling collection of over 106,000 toys from around the world.

A geological mystery on Camelback Mountain.

A spiritual vortex among the red rocks in Sedona.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

See massive fossils that are over 200 million years old in northeastern Arizona.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

Even in death, he's still your huckleberry.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Highly spherical boulders on the shores of New Zealand.

Hundreds of bras, blowing in the wind.

A perfect turquoise lake colored with glacier dust.

Some of the clearest water anywhere in the world.

A wooden hut from the Heroic Age of Antarctic Exploration.

Natural time capsule containing an alien ecosystem.

One of the most extreme deserts in the world, these snow-free valleys harbor life, despite the hostile environment.

Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.

Antarctica's bustling metropolis, originally established by Richard E. Byrd.