Mysterious meeting place for UFO hunters near Area 51.

Come for the speed, leave in love with the desert.

The liveliest ghost town in the state.

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

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

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

The echoes of a railroad town that solemnly mark the end of the line.

The haunting ruins of Jack London's dream house.

The ghostly remains of an accidental sea.

The world's largest military aircraft cemetery.

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

Nuclear reactor created the plutonium used on Nagasaki.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Europe's largest prehistoric mound – burial site of a legendary king?

Abandoned Air Force base that has fallen into disrepair.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Famously misunderstood wonder of the ancient world

Ancient pueblos built into the base of a natural canyon wall.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

Established in 1853, this crumbling cemetery sits forgotten on the corner of Church and Chapel in Gold Country.

A rotting air force base is now home to rare birds and scarce plants.

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