This historic bridge has weathered fires and floods and still stands, now abandoned, where it has stood since 1874.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

An artificial crater field that trained astronauts for lunar exploration.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Don't blink or you'll miss it.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

America's only nuclear missile silo open to the public.

A Saint Nicholas-themed ghost town in the Mojave desert.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Permanent exhibit reminds visitors of the Exxon Valdez.

A tiny wilderness cemetery commemorates the deadliest episode of the Klondike Gold Rush.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

This ghostly Alaska village still clings to a steep cliffside despite having been abandoned for over 50 years.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

Medical museum featuring a number of excellent medical models.

The terrified face of Henry Wells is etched on this garret window.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.

Inside this small brick bungalow is a collection of toys intended for the afterlife.