A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

An abandoned mine where dreams of quicksilver trickled away over 75 years ago.

A collection of massive stacked rocks in Texas includes a snarky note on the benefits of modern technology.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

Turning night into day in Victorian-era Austin to thwart a serial killer.

A grove of colossal man-made flowers built to collect the sun's rays.

The symbol was surreptitiously built into the river bank by German prisoners of war.

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

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.