This limestone outcropping was once a ceremonial site for ancient Native Americans.

The site of the one of the most deadly train wrecks in American history.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

A museum to a cave explorer whose tragic death was a media sensation, and whose corpse became a tourist attraction.

A curiosity-seeker's paradise set inside a three-story historic school house.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

Moonbows over Kentucky.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

The world's longest known cave system.

Two hula hoops appeared on the tree after a storm, and the collection kept growing.

This remote island in Iowa was abandoned after being devastated by flood.

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

Home with Gothic windows featured in a famous painting.

This seemingly charming home memorializes and honors the victims of a century-old unsolved murder.

This famous city eluded concrete detection until the early 2000's.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

A geological oddity topped with a 2,000-year-old pagan temple.

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

Small church on top of a huge rock column.

A city entirely devoted to illegal gun production.

Thousands of ancient rock carvings are scattered just off the highway.