The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

This Wyoming town is fascinated by a particular mythical creature.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

One of the smallest towns in the United States.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

An architect's childhood fantasy treehouse made real.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Native Americans built this circle of stones, which was used to predict astronomical events.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

One man's ambition created this psychedelic log home.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

The only road through the heart of Glacier National Park.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The island residents are known for taking their quirky sense of humor with them to the grave.

This glass-stain Mary attracted thousands of pilgrims until her head was shattered by a vandal with a slingshot.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

This state park was once an important Native American cermonial center.

The world's largest private aircraft collection.