The University of Pennsylvania, The Rotunda, and University City District (UCD) are teaming up to bring a slate of free entertainment to the beautiful green space just behind the Walnut Street Free Library at 40th and Walnut Streets. On Saturday, July 25th, we are teaming with the University of Pennsylvania and the Rotunda to transform the green space behind the Walnut Street Free Library at 40th and Walnut into a free, family-friendly evening of entertainment for the entire community to enjoy.