Buildings, structures, etc History 53 Historic buildings 27 Buildings 23 Hotels 19 Architecture 18 Conservation and restoration 8 more ... Historic sites 7 Social life and customs 6 Railroads 5 Statues 5 Histoire 4 Homes and haunts 4 William Penn Statue (City Hall, Philadelphia, Pa.) 4 Architecture, Domestic 3 Design and construction 3 Dwellings 3 Exhibitions 3 Historic houses, etc 3 Mansions 3 Public buildings 3 Walking 3 Abandoned buildings 2 Architectural & Industrial 2 Architecture, Modern 2 Architecture, Victorian 2 Auditoriums 2 Biography 2 Businesswomen 2 CHR 1789 2 Church history 2 Church schools 2 Condominiums 2 Description and travel 2 HISTORY 2 Historic districts 2 Jews 2 Lesbians 2 Liberty Bell 2 Middle Atlantic (DC, DE, MD, NJ, NY, PA) 2 less ...