This popular pitstop lives up to its name.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

After a local English teacher visited Stratford-upon-Avon, she was inspired to create a garden and home in the Bard's honor.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

One of the largest private collections of fossils in the world.

The oldest extant wooden jail in South Dakota and possibly the United States. 

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

The cliff and rock formations are made out of Sioux Quartzite.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

An entire city block built completely out of petrified wood.

A cemetery housing wild west legends in South Dakota.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.