The 44,000-ton aircraft carrier was purposely sunk to create an artificial reef teeming with life.

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

Explore the evolution of printing technology, from cuneiform to Kindle.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

Where beautiful signs live on forever.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

The world's only museum devoted solely to the art and collection of action figures.

An acoustic anomaly with a mysterious cause.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.