Map Lovers’ Monday: Philadelphia Geology, 1881
Map Lovers’ Monday: New Jersey 1869
Birch’s Views of Philadelphia, 1800
Map Lover’s Monday: Fairmount Park, 1869
The Discovery Center: The creative reuse of an abandoned city reservoir
Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Mount Moriah Historic Cemetery and Arboretum
The ecology of Center City, Philadelphia (in case you didn’t know there was any)
Requiem for a stream: Adams Run in Oak Lane
