The ancient water tanks remain some of the ruined city’s most beautiful architecture.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

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

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

A tribute to Ponce de Leon's supposed quest for eternal youth.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Only intact Ichthyosaur skeleton in the United States.

Legends surround this jagged rock formation in the New Mexico desert.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

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

This super steep hike ascends 2,000 feet in less than a mile.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

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

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

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

The remains of what was, not so long ago, the world's largest city.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.