Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

A Mayan village preserved for centuries in volcanic ash.

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

A unique geological area spiked with wind-carved rocks that resemble teepees.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A spiritual vortex among the red rocks in Sedona.

The unusual burial monument of Arizona's first governor.

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

Largest man-made excavation on earth!

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

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

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

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

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.

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

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

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A huge musical instrument played by the ocean.

It is locally loved and ridiculed for literally looking like poop.

These pretty kitties killed and ate as many as 135 railway workers.