King of Prussia Mall is one of the most luxurious malls in the country! Last weekend I visited with my friends and we were surprised that there are more than 400 stores. This is without any doubt the best mall in the Philadelphia metro area. The mall does a nice job of mixing expensive retail stores and department with the more affordable shops. Recently somewhere I read that the Mall of America is larger in square area, but I think that in terms of retail space the King of Prussia mall is really the largest mall in America. In this mall you can find anything you're looking for. The stores have such an unbelievable selection and I feel like I can't even walk through without buying something.