Glenn Dale Hospital was a tuberculosis sanatorium and isolation hospital in Glenn Dale, Maryland, in the United States. It is a large facility, consisting of 23 buildings on, that was built in 1934 and closed in 1981 due to asbestos.Though it is now closed and may be eventually demolished, for decades it was an important public health institution near Washington, DC. The Maryland-National Capital Park and Planning Commission Park Police patrol the hospital grounds regularly.GroundsThe hospital grounds consist of several buildings: Children's Nurses' Home Children's Hospital Building Residence "D" Dormitory Building "C" Nurses' Home Building "F" Duplex House Building "D" Doctor's House Building "G" Duplex House Building "E" Doctor's House Adult Hospital Building Warehouse and Mechanics Garage Heating and Power Plant Sludge Bed Enclosure Sedimentation and Control Building Water Softener House Pump House Employee Building Laundry Residence "C" Dormitory Hot House Four Apartment Building No. 1 Four Apartment Building No. 2 Paint and Repair Shop Incinerator Other parts of the hospital include: art rooms, staff housing, nurses' homes, playgrounds, theater, seclusion rooms, storage areas, chapels, morgues, and boiler rooms.