Map Lovers’ Monday: Philadelphia Geology, 1881
Map Lovers’ Monday: The David Rumsey Map Collection
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Birch’s Views of Philadelphia, 1800
Map Lover’s Monday: Fairmount Park, 1869
Roberts Mill, Wingohocking Creek, 1871
Dripps map of Frankford and vicinity, 1849
Mount Moriah Historic Cemetery and Arboretum
Early visions of Philadelphia’s airport
Report on channelization of Frankford Creek for flood control (1947)