In Shanghai for a day, what to do? I'm heading to Shanghai from Suzhou (train) on December 20 and will be there early morning. I got a day before I have to catch a flight to HK at 3pm.

So I got 24 hrs to chill in Shanghai, what should I do? I've been to SH before and stuff I've seen so far are the bund (and been to the buildings too), yuyuan garden, Shanghai history museum, WFC, east Nanjing road, people's square, Expo 2010 venues. 

I don't mind going again to some of the places like the bund but would love to see some cultural side of Shanghai! 