Convention centers often have art scattered around. Remember the huge gingko fruits in the Portland (Oregon) convention center? Philadelphia seems to have a particularly large and interesting collection, established when a city ordinance required that 1% of the building costs of the convention center be put aside to start the collection. So if, like me, you've been too busy to make it down to Museum Mile (I'm hoping to get there Tuesday afternoon), there are also things to see in the convention center itself.
One of the first pieces I noticed was China Wedge by Mei-Ling Hom, an enormous sculpture made of chinese restaurant bowls, cups and spoons framing an escalator.
Two other sculptures
Transitions, Sidney Goodman
Two paintings by David Hopkins
and three others . . .
More about the Philadelphia Convention Center art collection here.