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

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

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

A former copper mine which became a truly unsuccessful prison.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

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

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

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

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

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A wunderkammer hidden on the top floor of the Hartford statehouse.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

The intriguing personal collection of a professional demon-chaser.

America's oldest archaeological site or a muddled case of wishful thinking.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

Even Henry David Thoreau found this glacial pothole irresistible.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Taste the white whiskey that the United States' first president once distilled and enjoyed.

Hop on the train and tour an elaborate miniature town made completely of junk (including the train).

An overgrown garden stands as a grim marker of an unrealized dream.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.