Ghosts of Water in Fairmount Park, Part II, with Adam Levine
Plan of Philadelphia, John Hills, 1796
Wingohocking Sewer across Penn St.
Two Frankford Creek Bridges, 1896-1899
Centre Square Water Works, Drawings of Intake Basin
Centre Square Water Works, Frederick Graff, Sr. Plans, 1799
Centre Square Water Works, Latrobe Plans, 1799
Dauphin and Sydenham car crash, Jan. 17, 1978
Thomas Run sewer outlet at Cobbs Creek
69th St. Sewer and Culvert across Lansdowne AVe.