See the world's largest outdoor art gallery during an official Mural Arts Program tour. All tours include details about the murals, the artistic process, the artists, and the history of the diverse communities that serve as the backdrop for this unique art form. Public tour options include walking, trolley and train. Private tours are also available to include walking, trolley/van, train or step-on to your own vehicle. Don't miss the opportunity to see firsthand why Philadelphia has been designated as the "mural capital of the world."