A formerly abandoned mental institute, now back in business.

The site of a tragic massacre that spawned a multimedia franchise.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

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

An eccentric playboy's astounding natural history collection.

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

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

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This landmark cemetery in Boston was created more than 300 years ago.

The site of Paul Revere's historic two lantern warning.

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

A more than 260-year-old crypt built on Boston's oldest English burial ground.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Catacombs turned marketplace.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.