Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Rebuilt remains of a temple to Roman god Mithras.

The oldest working mechanical clock in the world.

A massive sea stack famous for its appearance in The Goonies.

The longest and widest floating bridge in the world.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

What is the Thing?

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

The world's largest military aircraft cemetery.

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

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Only intact Ichthyosaur skeleton in the United States.

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

The first U.S. town to secede from the Union, only to vote themselves right back in.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

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

The oldest continuously operating Catholic school west of the Mississippi.