New York City's best sandwiches

New York City's best sandwiches are like jazz, improvised and surprising, an art form created by passionate people with unassailable technique. Bread and ingredients are versatile, from old-fashioned to modern, domestic to international. Sometimes you want to savour a sandwich alone and sometimes with a crowd. If it's killer enough, a sandwich can be the high point of your day. This workingman's staple has gained newfound prestige, becoming a serious subject that's hotly debated among the city's cognoscenti. Appetites for them are relentless, giving New Yorkers reason to deplete their MetroCard balances in pursuit of euphoric culinary revelation. Here are a few sandwich destinations that deserve hall-of-fame status.