The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

The world's longest known cave system.

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

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

A true roadside icon standing on the same plains that the herds once roamed.

The world's largest Holstein cow.

More than 5,000 contemporary and "historic" mustards from around the world.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The fifth-longest natural arch in the world, and the longest outside China.

Belly up to the bar in Cowtown, don't forget to buy some boots.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A small Chicago museum filled with thousands of preserved butterflies, beetles, and more.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

The 606 is a decade in the making.

These pretty kitties killed and ate as many as 135 railway workers.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A hollow cement depiction of time's inexorable effect on the human body.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.