A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

One of the ghostly stops along Route 66.

San Diego's most historic and haunted home.

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

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The ghost town that ended up on Ebay.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

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

The ghostly remains of an accidental sea.

Towering basalt columns, a creation of fire and ice.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A Saint Nicholas-themed ghost town in the Mojave desert.

More than 25 fully functional scale replicas of famous lighthouses dot the shores of Lake Havasu.

A tribute to the statues of Easter Island along Route 66.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

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

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.