A few days after moving - rather suddenly - to Philadelphia, knowing nothing about the city and being lost most of the time, I happened upon this stunning mural, and it brought tears to my eyes. The light changed, horns honked, I had to move on too quickly. I spent days trying to find it again. It is brilliant, and Philly is lucky to have it. Note that it is the only one of the city's murals available as a poster: find it on the Mural Arts Project website.