Florida Subcategories This category has the following 10 subcategories, out of 10 total. A Defunct airports in Massachusetts (1 C, 60 P) Archaeological sites in Massachusetts (1 C, 12 P)D Formerly Used Defense Sites in Massachusetts (1 C, 4 P) Demolished buildings and structures in Massachusetts (2 C, 109 P)P Former power stations in Massachusetts (2 P) Defunct prisons in Massachusetts (13 P)R Former religious buildings and structures in Massachusetts (2 C)S Defunct schools in Massachusetts (1 C, 53 P) Defunct sports venues in Massachusetts (8 C, 2 P)U Defunct universities and colleges in Massachusetts (1 C, 8 P)