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

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

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

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

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A tomb with a window to ensure the interred wasn't buried alive.

Step inside Lucy, the world's largest "elephant."

An abandoned dollhouse factory.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

Tucked in the back of this amazing antique store is an important piece of medical history.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

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

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

American artist J. Alden Weir purchased this 60-acre estate for $10 and a painting.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

Connecticut's shot tower is near the end of its life.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

House used in the 1971 horror film "Let's Scare Jessica to Death."