This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

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

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

These aggressively sustainable art homes look like something out of 1970's science fiction.

A multi-storied adobe complex has been inhabited for more than a thousand years.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

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

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

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 largest island on the great salt lake is home to curious creatures and strange stories.

The fifth-longest natural arch in the world, and the longest outside China.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

A tunnel with windows, so you don't miss out on the impressive views.

The unusual patterns in this rock formation result from two distinct modes of weathering.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."