Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The world's last remaining store of its kind.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

A vertically floating hemlock controls the waves and weather at Crater Lake.

10,000 flowered plants bloom in the City of Roses.

A massive sea stack famous for its appearance in The Goonies.

Only known mainland rookery of the threatened Stellar sea lion.

The longest continuous lava tube in Oregon.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Take a monster truck tour around an ostrich farm in the middle of the desert.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.