History 480 Streets 376 Residences 174 Description and travel 142 Philadelphia 119 African Americans 114 Church buildings 89 more ... Social life and customs 79 Schools 76 World War, 1939-1945 71 School yearbooks 65 Parades & processions 64 Exhibitions 62 Employment 60 Pictorial works 60 Jews 59 Photography 59 Historic buildings 56 Histoire 55 Women 54 Strikes 49 Indians of North America 48 Photographs 48 Views 47 Architecture 42 Education 42 Children 38 Travel 38 Pickets 36 Dwellings 35 Sports 35 Conservation and restoration 33 Buildings, structures, etc 31 Hospitals 31 College yearbooks 30 Defense industry 30 World War, 1914-1918 30 Photographers 29 Collectors and collecting 26 Hotels & taverns 26 less ...