Quanjude is the best restaurant in Beijing, serving roast duck with a difference. You might hear that there are others of the same standard ... but you have to come here. It was founded in 1864 during the Qing Dynasty. Every year, the restaurant serves more than 2 million ducks to 5 million customers. I recommend going to Beijing a day early to book a table, because of the huge queues that tend to form quickly. In fact, I would suggest going to their website and making a reservation online. If this sounds like a lot of effort, don't forget that we're talking about the best duck restaurant in the world.