Locals dubbed it the "Owl Building" because of its bird-like appearance.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Peek inside this sandy mailbox and you'll spot kids' letters to Santa.

One of the ghostly stops along Route 66.

No one’s quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

This giant temperature attraction created some giant electric bills.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

The world’s largest concentrated solar plant generates as many problems as megawatts.

Built as a schoolhouse in 1914, this Mission-style building has also served as a dancehall, a library, an Army canteen, and now a cultural museum.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

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

This 252 step staircase offers stunning views of San Jose.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

This overlooked street light once served as a KGB dead letter box.

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

Take a monster truck tour around an ostrich farm in the middle of the desert.

The overgrown ruins of a once thriving World War I-era copper mine.

This large collection of tiny things revels in the art of fine machinery well made.

It is locally loved and ridiculed for literally looking like poop.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

An inconspicuous footbridge beloved by San Diego locals.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."