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

This small-town Connecticut restaurant gives each diner a free book from its vast library.

A unique collection of more than 250 rocks and minerals located on a university campus.

This enormous abandoned factory is now a makeshift graffiti gallery.

Narrowest house in Boston.

After the nearby mercury mine shut down, this town was abandoned and declared a Superfund site.

A unique, eye-catching statue that carries an important message of hope.

A tiny island home to a former English slave fort.

255 feet of suds, scrubbers, and blow dryers.

Fantastic collection celebrating the final send-off.

The largest underground pedestrian tunnel system in the U.S. mostly caters to the people working in the offices above, but provides a great, air-conditioned way to traverse the city.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

An abandoned castle owned and ignored by Masons carries a cursed history.

The largest known open fault in the United States is basically a giant natural refrigerator.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

A once grand hotel is being retaken by the wilderness it once capitalized on.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

The attic and basement house two museums stuffed with oddities like swallowed spoon handles and a shrunken head.

Amazing views of Long Island Sound can be seen from this mountaintop tower.