I have friends in town from Paris. They are well traveled and have been to DC before. With nice weather this weekend, where should we go in DC for a nice, leisurely lunch (i.e. not "our kitchen is trying to close for the afternoon so hurry up and order" type of place)? A nice wine list is a must, and French food is probably not such a good idea. Open to any other type of cuisine and ambiance though. We were thinking of Zaytinya, but would like other options/ideas. Has to be NW DC (due to guests' meetings in the morning and other logistics). Thanks!