A stunning landscape of bunkers that once stored chemical weapons.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

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.

An architect's childhood fantasy treehouse made real.

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

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

This rustic old building is said to be the most photographed barn in America.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

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

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

This Native American settlement dates back to the Pueblo II period.

An homage to everyone's favorite prehistoric cartoon family.

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

A rare wayfinding portmanteau of “Street” and “Avenue.”