Historic sites History 53 Conservation and restoration 40 Antiquities 28 Historic buildings 24 Cultural property 23 History, Local 22 more ... Historic preservation 21 Monuments 16 Protection 16 Excavations (Archaeology) 14 Social aspects 13 Interpretive programs 12 Description and travel 11 Archaeology and history 8 Collection and preservation 8 Cultural policy 7 Historical museums 6 Public history 6 African Americans 5 Archaeology 5 Buildings, structures, etc 5 Civilization 5 Memory 5 Museums 5 Race relations 5 Travel 5 Architecture 4 Battlefields 4 Homes and haunts 4 less ...