The Windward Grille in Essex, Massachusetts is reportedly haunted by several spirits, with alleged phenomena including cold spots, flickering lights, toilets flushing on their own, and apparitions, including a woman seen waving her arms. There are also claims of historical paranormal activity and investigations by groups like the Mass Ghost Hunters Paranormal Society. A couple has been seen floating near the walls, and an apparition has been observed waving her arms. Visitors have reported cold spots and flickering lights. Toilets have been known to flush on their own. The house's possible connection to the Underground Railroad is suggested as a reason for the lingering spirits. The Mass Ghost Hunters Paranormal Society has conducted investigations at the restaurant, finding evidence of paranormal activity. The restaurant is considered a real haunted place, according to this website.