Most likely, you'll take the maglev out of Pudong Airport, but visiting the Hongqiao Transportation hub at the other end of the city is equally impressive (if not more). It's a combination domestic airport, high speed train terminal, inter-city bus depot, and eventually, the Maglev and several metro lines are supposed to go there. It's one of the most ambitious inter-modal hubs I've seen. It was a bit of an effort to get to when I was there in 2010, though