Towering basalt columns, a creation of fire and ice.

A natural dome made of volcanic glass in Inyo National Forest.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

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

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

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

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

A quirky collection of outsider art made from automobile parts.

A Jurassic artscape composed of transmission casings and other mechanical parts.