This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

Meet manatees face-to-face at this zoo for native species.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

A simple midtown bar was once the home of a secretive and exclusive club staffed by "bunnies" under Hefner's strict rules.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

A castle built for love, and abandoned due to heartbreak.

Unrepaired walls from a 1920 anarchist bomb attack.

This once luxurious Catskills resort is now a haunting ruin.

A popular European tradition makes its way to the states on one of America's most famous bridges.

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

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Even Henry David Thoreau found this glacial pothole irresistible.

This supermarket is suspended 25 feet above an interstate highway.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

The second largest roadrunner in the world stands 11 feet tall in his West Texas town.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

Mysterious glowing orbs float through the desert night.

Mysterious stone tower featured in many alternative histories of the New World.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This grimly-titled Texas cemetery is all that remains of a Wild West settlement with possibly the worst name.