Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

This curiosity shop contains a museum filled with bizarre, unique objects.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

What is the Thing?

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

The biggest solar telescope in the world helps reveal the secrets of our sun.

Hidden on a cattle ranch in Arizona, this bookstore has been celebrating Southwest literature for more than 40 years.

A reproduction of earth's many biomes.

An off-the-beaten path cave with an underground lake.

America's only nuclear missile silo open to the public.

One of the largest open-pit copper mining operations in the entire country.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

An eatery for UFO seekers on the Extraterrestrial Highway.

This is one really big nut.

The wild west is still alive and well at this authentic mining town watering hole.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.