Gallery attendance for "10 Years" at the Art Museum: 82,501. The highest ever for that gallery. By a lot. As a matter of fact, it's 32,000 people more than the previous exhibition with the highest attendance. And for the billboards... Clear Channel billboards, 508,374 impressions a day. Krain billboards, 225,000 impressions a day. For a few weeks, that's quite a removal of ad space in Philadelphia.