The Atlantis of Cape Cod reemerges during the lowest of tides.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

The macabre graffiti spectacle in a quarry in a Massachusetts forest reservation.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

Eclectic collections, artwork, and some feline friends fill the writer's former home.

35,000 grape hyacinths flow like water down a garden hill.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

The headquarters in Salem doubles as an occult art gallery.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Museum dedicated to awful artwork.

The vaulted ceiling is home to a scurry of “squirrelgoyles.”

Artistic cabins actually grow deep in the Canadian wilderness.

A school teacher's massive and terrifying self-built castle.

The Hudson River School comes alive at this palatial estate.

This tiny store is your one-stop shop for all sorts of rare and wonderful buttons.

Some of the best Persian food in New York comes from the front window of an unassuming pizza shop.

Three-story slide through the New Museum.

On the top floor of an upscale department store stands a lavish restaurant housed in a replica of a luxury French dining car.

For almost a century, this East Village newsstand has served egg creams to beats, hippies, punks, and everything in between.

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

Where one of the worst train disasters in the country took place, leading to upgrades in rail safety.