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

Elvis's own personal tropical hideaway.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A house carved into a rock in the 1940s.

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

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

This giant temperature attraction created some giant electric bills.

A stellar example of Art & Crafts architecture, and a movie set to boot.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

Oldest building in California still in use.

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

A tribute to the life and work of the beloved "Peanuts" cartoonist.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

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 lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A former utopian healing center created by a huckster and built by derelicts.

World-famous, Pink's still manages to keep its prized cult fetish status.

Quite simply the largest tree in the world (by volume).

The ghost town that ended up on Ebay.