The Quabbin Reservoir is the now the largest body of water in Massachusetts. However, the area it now occupies once had four small towns and a network of roads and rail tracks running through it – all of which were flooded or displaced by the filling of the area with water. While some public structures, memorials and graves were moved out of the way many still sit today at the bottom of this body of water. Some nearby structures sit above the waterline but were abandoned without the adjacent buildings that sustained their use.