Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Philadelphia Topography
Map Lovers’ Monday: The David Rumsey Map Collection
Map Lover’s Monday: Fairmount Park, 1869
Sometimes the backside is the best side
Early visions of Philadelphia’s airport
Images from ‘The Water Supply of the City of Philadelphia by a proposed Aqueduct from Norristown Dam’
