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

A cemetery housing wild west legends in South Dakota.

One devoted couple has donated multiple recreations of Michelangelo's sculptures to this South Dakota town.

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.

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

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

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A fitting attraction for the corn capital of the world.

Oldest building in California still in use.

The ghostly remains of an accidental sea.

This historic tower in the California desert promises visitors a "vortex of good vibes".

A world-class observatory in the California desert.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

The sea once considered an ecological wasteland is now called "crown jewel of avian biodiversity" by scientists.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.