Historic sites History 244 Antiquities 123 Conservation and restoration 123 History, Local 96 Cultural property 67 Excavations (Archaeology) 67 more ... Historic buildings 66 Description and travel 56 Historic preservation 56 Protection 55 Social aspects 53 Archaeology and history 39 Archaeology 31 Monuments 29 Interpretive programs 28 Social life and customs 26 Collection and preservation 25 Cultural policy 25 Material culture 25 Battlefields 23 Travel 23 Buildings, structures, etc 22 Walking 22 African Americans 20 Public history 19 Indians of North America 18 Architecture 17 Museums 17 Heritage tourism 16 less ...