An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

A Mars simulation in the southern Utah desert.

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

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

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

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

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

A beautiful geyser under environmental threat.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

A majestic hotel that also stands as a historic relic.

Take a hike to this remote, scenic tea stop in the Canadian Rockies.

The granite head appears to be deep in thought and half buried in the ground.

Historic site where Native American hunters once trapped and killed buffalo.

This natural wonder is disappearing at an alarming rate.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

The frozen bubbles that form on the icy surface of this Canadian lake contain enough methane to create a small explosion.

These unique volcanic rock formations offer the perfect opportunity to camp and hike.

Comprised of thousands of cave temple carvings this cornucopia of ancient Chinese stone art is unrivaled anywhere in the world.

Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.