The only remaining Cold War–era Minuteman II missile control center in Missouri.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

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

A unique attraction and museum dedicated to exploring iconic roadside structures.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.

This giant green head remembers one of America's jazz giants.