You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

The childhood home of one of Ohio's favorite sons, pilot and war hero Eddie Rickenbacker.

This old-school soda shop is the home of the Tin Roof Sundae, a concoction dripping in chocolate, marshmallow, and peanuts.

In addition to fishing and camping, this spot in Nebraska’s Sandhills is one of the world’s darkest places.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

Visit a replica of the estate where Aaron Burr allegedly plotted a treasonous scheme against the United States.

Built around 1845, this house was occupied for 100 years, serving as a home to a prosecuting attorney, a Union Civil War general, and a wealthy socialite.

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

Once a slice of Cold War-era military history, this museum is finding its future in the star.

This Nebraska museum was once the smallest courthouse in America.

The failure of one component toppled this entire bridge during rush hour.

Just outside the Ohio Supreme Court sits a testament to justice.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

A real flying saucer, contracted by the U.S. Air Force.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Home to items never before seen by the public.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

The world's largest fully steerable radio telescope.