Brooks Air Force BaseW
Brooks Air Force Base
Camp RhinoW
Camp Rhino
Galeta Island (Panama)W
Galeta Island (Panama)
Georges Head BatteryW
Georges Head Battery
Meløyvær FortressW
Meløyvær Fortress
Moscow Air Force StationW
Moscow Air Force Station
Naval Security Group Activity, Winter HarborW
Naval Security Group Activity, Winter Harbor
Oscarsborg FortressW
Oscarsborg Fortress
Saint Mary's TowerW
Saint Mary's Tower