A cave dug by a man directed by ghosts to find pirate treasure.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Three prestigious academic collections come together to create a world-class natural history museum.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The Boston square dedicated to the dark poet who was born nearby.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Two thousand artifacts from around the world collected by one woman who loved to travel.

This home is steeped in history from, George Washington to George Corwin, High Sheriff during the Salem Witch Trials.

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

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

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

This Gothic castle was inspired by Erik the Red's Viking residence at Brattahlid in Greenland.

Ornate and macabre headstone in one of the country's oldest cemeteries.

Friction between grains of sand cause a curious "singing" sound.

An eccentric inventor's castle home with its own indoor weather system.

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

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

The oldest surviving wood-frame building in North America is still in the family.

A museum dedicated exclusively to the lore and history of ouija boards.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.