Here are some pictures of the the hall at Christ's. The hall is between First Court and Second Court, and dates back to the sixteenth century. The photos show a "Formal Hall" dinner taking place.
At Christ's, Formal Hall is available six nights a week and you can sign up to attend on evenings when you'd like a special served meal with college friends or visitors rather than going to the normal College canteen (Upper Hall). Think of it as an in-College equivalent of going out to a restaurant, except that at just under £10 for three courses plus coffee, it's cheaper than equivalent Cambridge restaurant prices. See the meals page for more information about the various options for food.