Last Updated on 26th February 2026 by Bejal The Mural Mile in Philadelphia, is quite literally the world’s largest open air gallery, and trust me it’s not restricted to a mile either from its humble beginnings thirty odd years ago. I’ve mentioned many times previously, I’m in awe of street art and the artists who … Continue reading THE MURAL MILE, PHILADELPHIA:THE WORLD’S BIGGEST OUTDOOR GALLERY