LET’S PRETEND
I’ve been watching a building going up a block from where I live in Philadelphia. 222 Market Street is a nineteen-story office block. The structure is steel, and except for a couple of odd slanted columns at one end, it is the sort of regular frame of I-beams that engineers have been designing for well over a hundred years; the first steel framed building in the U.S., was Burnham & Root’s ten-story Rand McNally Building in Chicago, erected in 1890. When the Market Street steel was topped off the structure reminded me of the high-rises that Mies van der Rohe put up in Chicago in the 1950s.