This town is home to the world’s largest arch constructed entirely of elk antlers.

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

An architect's childhood fantasy treehouse made real.

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.

This balancing rock is one of Utah's most unusual geological formations.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

The location where the iconic movie character declared it was time to go home.

Oddly shaped rock formation, misassociated with a nearby utopian community.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

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

Come for the speed, leave in love with the desert.

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

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

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

Home to the deepest rift anywhere on Earth.

This indoor ski resort has a mountain contained inside a mall.