Traveling to China, any Itinerary and Sites Suggestions?

[Rod Hagen]

Picking up the Visas today in Chinatown, and THEN getting breakfast at Langers, the best Pastrami in America, yes even better than Katz's, objectively

Three weeks in October:  Hong Kong, Yangzhou, Beijing, Xian, Shanghai and Hangzhou.  Excited and also glad to get it done, China is such a BIG trip I've put it off for years.   Suggestions?  Advice?  

THANKS!

Edited 7 hours ago by Rod Hagen