The world's largest collection of witchcraft regalia.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A terrific purveyor of natural history objects and curios.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A tribute to the couples who brave long periods of separation during wartime.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This candy-colored storybook village originated as a 19th-century Methodist campground.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

The homestead of American patriot John Adams.

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

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

It's not a typo, now say it five times fast!

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

The massive machine creates cracking displays of indoor lightning.

Trash escaped from a landfill to fill beaches with all kinds of treasure.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.