St. Augustine's record-setting narrow street was designed to protect against pirates.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Former villa and estate of James Deering developed to preserve native tropical forests.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

These giant metal horses graze on a hilltop near the Montana highway.

One man's quest to save his town with a trail of record-breaking sculptures.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

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

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

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

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

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

This rustic old building is said to be the most photographed barn in America.

The first declared National Monument in the United States.