The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

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

When ecosystems collide in the arid Southwest.

The largest source of fossilized insects anywhere.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.