Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

Located in a beautifully restored ice house, this museum is the result of decades of hard work and devotion to the craft of plumbing.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

An unrealized dream to wirelessly electrify the entire Earth.

Taxonomy experiment known for quirky collections.

A steampunk wonderland that preserves America's history of industrial innovation.

An elaborate, hidden model train in the Needham Town Forest.

A safe space and resource for anything and everything relating to sex and sexuality.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

A former zoo turned public park, where visitors can hang out in the old animal cages.

No one really knows how these old hobby horses got here, but the herd keeps growing.

Restaurant in a 1741 farmhouse that touts the story of its haunting on its menus.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Underground tunnels remain beneath this abandoned mental asylum.

The intriguing personal collection of a professional demon-chaser.

A strange, heartwarming, decades-old declaration of love on a New Hampshire roadside.

Beautiful natural falls where Satan once ruined a pot of beans.

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

This railroad tunnel was once the longest in Massachusetts.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

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

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.