At this rural museum, visitors can experience "Boomtown U.S.A.," a lifelike re-creation of an oil boomtown in the 1930s.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

The highest point in Texas is capped by a big silver pyramid.

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

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

This small museum inside a larger sports complex honors the first Native American to win an Olympic gold medal for the U.S., and his life of achievement and struggle.

In Oklahoma City's Bricktown, there's a street that don't use jelly.

An indoor botanical garden for tropical plants looks like a giant cylinder lying on its side.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

This unusually circular centenarian barn became a Route 66 icon.

A quirky mishmash of Route 66 memorabilia and other throwbacks from the past.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

Located along historic Route 66, this former gas station has been restored and converted into a museum filled with vintage motorcycles.

Though it's no longer a functioning train depot, this castle-like structure is an important piece of Oklahoma history.

This unique landscape is the only place in the world to dig for hourglass-selenite crystals.