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

Oldest church in the United States that is still in continuous use.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

Historic Hull Street was actually the first street with a proper name in the Boston area.

This historic patch of real estate offers a glimpse of colonial Boston.

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

Narrowest house in Boston.

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

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

A beautiful Victorian-era cemetery, complete with a miniature village.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The only remaining historic maritime signal station in the United States.

Abandoned Italianate architecture on the coast of Maine.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

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

A 300-ship graveyard, with a few still visible at low tide.

Avoid gangster interaction while window-shopping.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

New York City's smallest piece of private property.