In this photo taken Tuesday, Aug. 25, 2009, a mural in the Love Letter project by Steve Powers with the City of Philadelphia Mural Arts Program is seen as Market Street El train approaches a station in Philadelphia. In one section of west Philadelphia, every day is Valentine’s Day. Dozens of “love letter” murals brighten the walls along nearly 20 blocks of elevated transit tracks. That makes the El a “love train” _ and, for one couple, the perfect place for a wedding. (AP Photo/Matt Rourke)