This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

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

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

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

A beautiful geyser under environmental threat.

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.

The first declared National Monument in the United States.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

America's largest man-made forest was planted in an effort to bring back the past.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

This erect, phallic geological spire wasn't always named so domestically.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Come for the speed, leave in love with the desert.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Mining caused an asbestos emergency in this small town.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

The only road through the heart of Glacier National Park.

Boise State's stadium was the first non-green football field in the world.

The mayor made the declaration in 2004.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.