This geothermal hot spring hides beneath a slowly growing mineral dome.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

From failed port town to Civil War fort, the ruins of this former defense saw their finest day in the television age.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

The oldest continuously occupied public building in the United States.

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

This sparsely populated town offers a look back in time.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

A sprawling collection of over 106,000 toys from around the world.

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

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

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

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

Mai Tais and Navy Grog served up in one of the original tiki bars.

Healing Springs that once ran red with soldiers' blood.