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

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

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

The world's largest public collection of PEZ memorabilia.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

The highest point in Connecticut was incorrectly memorialized before surveyors discovered the actual spot.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

This railroad tunnel was once the longest in Massachusetts.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

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

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

A beautiful Gilded Age hotel in the White Mountains with surprising diplomatic history.

This site was once the largest ski jump tower in the world.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

This nature mural exists to protect the surrounding environment and its own canvas from destruction.

The only remaining historic maritime signal station in the United States.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

A collection of full-size movie monsters opened to the public.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The only structure left with direct ties to the Salem witchcraft trials of 1692.