You might say that much of Pittsburgh’s history and culture can be summed up by two Andrews: Scottish-born industrialist Andrew Carnegie and pop art legend Andy Warhol. The former helped turn this Western Pennsylvania city into a steel-producing powerhouse, filling its hills with not only mills and factories, but also museums, libraries, universities and concert halls. A modern metropolis of gleaming skyscrapers and muscular steel bridges followed. Later, when industry started to move out, the city channeled the outsized creativity of the latter Andrew, who was born in Pittsburgh to immigrant parents. Factories were converted into contemporary art galleries, abandoned churches became breweries and long-neglected neighborhoods flourished with public art. The only difference is that Pittsburgh should expect a second act that’s much longer than Warhol’s 15 minutes of fame.