"This 1.4 million square foot new headquarters for the Comcast Corporation rises 57 stories, with typical floor plates ranging between 23,000 and 28,000 gsf. A 975-foot-high faceted obelisk, the tower is clad in silvery high-performance glass with ultra-clear, low-iron glass at the building's corners and crown. The Comcast Center and its south-facing, half-acre plaza straddles the underground tracks and concourse of Suburban Station - Philadelphia's primary commuter rail gateway."
--http://www.ramsa.com/project.aspx?id=39