An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.

This ancient village provides insight into the complexity of the pre-Columbian Fremont Culture.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

A middle school sports field that many believe was the true location of the first successful powered flight - and not by the Wright Brothers.

Playable, historic pinball machines fill this Alameda museum.

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

Back in the day everyone who was anyone played this historic western theater.

A homage to the King at the hotel where he revived his career.

In the middle of a remote desert town is a surprisingly opulent hotel.

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

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

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

Continuing the tradition of the dime museum in style.

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

One of corporate America's best-kept secrets is also one of the most publicly displayed.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

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.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

This sanguine boulevard was named after a deadly cowboy bar fight.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.