Architecture 23 History 5 Architecture--Philadelphia--19th century 4 Public buildings 4 Architecture--Philadelphia--20th Century 3 Historic houses, etc 3 Built environment--Pennsylvania--Philadelphia--20th century 2 more ... Designs and plans 2 Historic buildings 2 Architecture (Philadelphia) 1 Architecture, Colonial 1 Architecture, Modern 1 Architecture, Philadelphia 1 Architecture--19th century 1 Architecture--Germantown (Pa)--19th century 1 Architecture--Pennsylvania--20th century 1 Architecture--Philadelphia--18th century 1 Bank of Pennsylvania--Philadelphia--18th century 1 Bridges 1 Buildings 1 Built Environment--Philadelphia--18th century 1 Catalogs 1 Cedar Hill Cemetery (Philadelphia, Pa.) 1 Centre Square Water Works--Philadelphia--18th century 1 Commerce--Philadelphia--19th century 1 Competitions 1 Competitions, American 1 Conservation and restoration 1 DAIA 1 Demolished Buildings--Pennsylvania--Philadelphia--20th century 1 Description 1 Description and travel 1 Details 1 Dwellings 1 Ecclesiastical Architecture--Philadelphia--19th century 1 Exhibition buildings 1 Fairmount Park (Philadelphia, Pa) 1 Hazlehurst and Huckel 1 Historic Buildings--Pennsylvania--Philadelphia 1 Historic preservation 1 less ...