Antiquities 64 History 51 Excavations (Archaeology) 49 Historic buildings 41 Conservation and restoration 39 Historic preservation 32 Historic sites 23 more ... Archaeology 18 Architecture 15 Indians of North America 14 Monuments 7 Periodicals 7 Archaeological surveying 5 Archaeology and history 5 Buildings, structures, etc 5 Historic houses, etc 5 History, Local 5 Bibliography 3 Cooking, American 3 Cultural property 3 Highway planning 3 Historiography 3 Minorities 3 Museum techniques 3 Preservation 3 Protection 3 Societies, etc 3 Affirmative action programs--Government policy--United States--History--20th century 2 African Americans 2 Agriculture 2 Architecture, Domestic 2 Art 2 Church buildings 2 City planning 2 Description and travel 2 Dwellings 2 Ethnic groups 2 Germantown, Battle of, Philadelphia, Pa., 1777 2 Historic buildings--Pennsylvania--Philadelphia 2 Industries 2 less ...