This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

Towering basalt columns, a creation of fire and ice.

The first declared National Monument in the United States.

One man's ambition created this psychedelic log home.

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.

Rusty red sands line the shores of this Canadian Province.

An experimental, automotive replica of Stonehenge.

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

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

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

A spiritual vortex among the red rocks in Sedona.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

A reproduction of earth's many biomes.

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

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Dramatic river bend surrounds a natural red-rocked pedestal.

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