SHANGHAI WHAT TO SEE AND DO
I was shocked to read that the first place the Shanghai tourism people want to send visitors is YuYuan Gardens. I have a bad taste in my mouth from AR5's very brief visit there.
The next two places are visiting the Bund (original mansions along the Huangpu River where the foreigners used to live and work) and the Shanghai Museum (Chinese bronzes, ceramics, painting, calligraphy, arts and crafts).
Shanghai would make a good place for an eating challenge involving seafood or some exotic Chinese culinary delights.
Shanghai is a metropolitan area of over 20 million people (17 million in the city itself, 5th to 10th largest metropolitan area in the world) depending on which source is used). There are lots of other less important things to see and do, including exploring the pockets of colonial architecture in the old French Concession, sampling the exploding restaurant and nightlife scene, or wandering the shopping streets.
Shanghai was visited by AR6, which went to YuYuan Gardens, to a tall building for a window washing at 40 stories high ROADBLOCK) and the very interesting DETOUR Bricks or Ice, both emphasizing serious physical labor.