Map Lovers’ Monday: Topography of Philadelphia from 1863
Map Lover’s Monday: Fairmount Park, 1869
Pennypack Park Map
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Map Lovers’ Monday: 1896 Suburban Transportation Map
Models of Change
Buried Treasures No. 1: The Franklin Sugar Refinery
Sewer systems, City of Philadelphia, 1927 and 1929
Early visions of Philadelphia’s airport
Drawing Dock Creek
