Gary's random little facts about China:

Beijing/Peking Roast Duck:
If you order Peking Roast Duck, you should do so only in Beijing, China (anywhere else, it's just not the same).

A hot tip: Always ask how long it will take before the duck is served.
If they tell you any timeframe less than 30 minutes, change your mind and order the Kung Pao Chicken (Gong Bao Ji Ding) instead.
The reason: If they can serve Beijing Roast Duck in less than 30 minutes, that means you are getting "pre-cooked" duck.
If you have to "duck the duck", next time look for a restaurant with ducks hanging over an open wood fire.