Our Annapolis Lighthouse Birdhouse is based on the historic Thomas Point Shoal Lighthouse that is located at the mouth of the Chesapeake Bay. The Maryland and DC area icon, built in 1875, and now unmanned, the automated lighthouse remains an active weather station and navigational aid. This lighthouse is a fully functional birdhouse featuring two nest boxes with 1. 25" openings, a removable base for yearly cleaning, drainage, ventilation and an unpainted interior. A custom-fit mounting plate makes installation a snap! Item Dimensions: 16? H X 13? W X 13?D.