Authentic Bistros of Paris

There may be a bistro on every block in Paris, but distinguishing the good from the disappointing isn't so easy: these little neighborhood restaurants look alike -- zinc or wood or pewter bar, small dining room, daily specials on the chalkboard, husband in the kitchen, wife up front. But the 51 bistros profiled here stand apart from the others by virtue of their food (often regional dishes native to the owners' home province) and wine (often a limited but well-chosen list from small vineyards with which the owner has a longstanding relationship).