This museum holds a fully-functional replica of the "Turtle," the first American submarine ever built.

Connecticut's shot tower is near the end of its life.

This historic park site contains the last remnants of a once bustling canal system.

The Connecticut village named for its subterranean thunder.

Made of bronze and wearing a blue gown, this lady sat in the same location in the Yantic Cemetery for more than 119 years.

Memorial to one of the most fatal fires in both circus and U.S. history.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

A parade of antique steeds offers a quirky ride through history.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

A quirky assortment of musical marvels from around the world.

The world's largest public collection of PEZ memorabilia.

Ruins of a historic medical facility sits eerily by the water.

An abandoned Depression-era zoo hidden just off the highway.

A few stone foundations and an old graveyard are all that is left of this once thriving settlement in the wilds of Connecticut.

A former copper mine which became a truly unsuccessful prison.

The kind of mixed-up place that drives archaeologists crazy.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

This public space is speckled with the eerie remnants of a defunct amusement park.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

The graffitied ruins stand hidden within the Pennsylvania woods.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

A museum of anything and everything Stooge.

This secluded walking trail is a hidden gem of a Pittsburgh park.