This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The notorious Wild West outlaw was raised in this unassuming abode.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

Peek inside this sandy mailbox and you'll spot kids' letters to Santa.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

Decommissioned experimental solar facilities that pioneered solar energy technology.

A devilishly named gorge that was a sign of salvation for many pioneers.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

The first declared National Monument in the United States.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Every president in history is immortalized in bronze in downtown Rapid City.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

An oddly specific collection of handmade dolls remembers the women of the White House.

Metal water storage tank turned ethereal concert hall.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

Art Deco stylings conceal the true nature of this bridge.

I Street Bridge is the heaviest swinging center bridge in the United States.