You know what would be really cool? A medieval restaurant. Not pseudo-medieval with a jousting show like Medieval Times; real medieval food and entertainment. The servers could wear garb and the dishes could be made to actual medieval recipes. Early music groups could play in the background and bards could recite from time to time. Seating and serving would be medieval-style and there could be pewter dishes. Also on "lean" days the restaurant would serve meatless dishes, and there would be feasts from time to time, with reserved spaces instead of open seating.