The Philadelphia Museum of Art is most famous for its front steps and if you're from Philly, I'm not teaching you anything new here.  On any Saturday in the warmer months, you'll see a couple wedding parties here at the same time and there is a reason why.  Its arguably one of the best spots in Philly for photos.  You have the architecture of the Museum in one direction and then a wide open city skyline in the other direction.  One of the keys for photos is just having space to work with and even with a heavy dose of tourists and runners, there's still plenty of space to work with.  I'm biased since I've called the Fairmount/Brewerytown area my home for the past 13 years, but its one of my favorite spots in Philly.