November 29, 2013 - January 31, 2014 at Philadelphia Center for Architecture 1218 Arch Street, Philadelphia PA 19107 Hours: Mon-Sat 10am-6pm, Sun 12pm-5pm Free The Constructing Play: Classic Building Toys Exhibition explores the history of building toys and the educational foundation which underlies their creation. Over 60 historic building toys, selected from the Center for Architecture's collection and spanning the past 175 years will be on display starting November 29th through January 31st. Visitors to this free exhibit will learn about their favorite construction toys, from Tinker Toys to LEGO, Erector Sets to K'Nex. They will also learn how structures stay up, discover famous local buildings in miniature and see how toy designers took inspiration from the past to create today's most popular building toys. The popular "Hands On Carts" allow visitors to show off their own building skills. While some of the toys on display are classics known the world over, there will be many lesser known toys in the mix; including Brickplayer, a miniature brick-casting kit; Astrolite, a light-up sci-fi building set made of clear acrylic from the 1970s; and Bild-O-Brik, a rubber precursor to LEGO from the 1930s.