Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

The current Eureka County Courthouse replaced an all-wooden structure that had previously been an ice-skating rink.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

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

The blinking light atop the iconic landmark has been sending secret messages for decades.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

A giant donut stands as a popular symbol of Los Angeles iconography.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Megachurch turned Catholic church comprised of 10,000 glass panes.

Oldest building in California still in use.

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

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Thousands of turbines whir at the origin of North American wind power.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

This 7th-century monastery was sacked by Saladin.

The largest known Ancient Egyptian obelisk.