This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

Victorian "Fancy Craft" Hair Wreaths and Relics.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

There are eight natural springs around town, each with a slightly different taste.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A winding, cliffside stretch of road overlooking the Delaware River.

Mysterious stone tower featured in many alternative histories of the New World.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

The man who wasn't there.

A modernist landscape of water and sci-fi concrete.

The first declared National Monument in the United States.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Deadly airliner crash preserved for those willing to climb and pay respects.

Legends surround this jagged rock formation in the New Mexico desert.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Oddly shaped rock formation, misassociated with a nearby utopian community.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.