"Philadelphia is known for its world-class museums, but few realize that it's also home to one of the world’s great outdoor art galleries, courtesy of its 4,000 (and counting) murals. Mural Arts Philadelphia, the brains behind these public art displays, runs walking tours of the seemingly endless string of outdoor art—but the best way to see it all is, undoubtedly, by foot. Groups of 15-20 meet at PAFA, the oldest art institution in the U.S., before meandering through Center City, and taking in a dozen or so murals. Whether it’s the tile lining the walls of the subway, or the mural brightening a city parking lot, it's not just something we look at; it’s something we live with every day. Guides are professional and passionate; they enjoy showing off the murals, and sharing insight into how they’re created, as well as stories about the program’s outreach to area homeless, incarcerated, and schoolchildren." - Regan Stephens, Devra Ferst