Locals dubbed it the "Owl Building" because of its bird-like appearance.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

One part antique store, one part curiosities hodge-podge.

This failed condo development was reborn as a street art hub.

A CT scan revealed the identity of this 3,000-year-old mummy that everyone erroneously thought was female.

The place where Samuel "Slater the Traitor" brought the Industrial Revolution to America.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

The vaguely man-shaped root that ate the body of the founder of Rhode Island.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

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

Narrowest house in Boston.

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

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

An unexpected Easter egg lurks in the background of a cherub wall relief at the Breakers mansion.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."