Grab a gargantuan slice at this popular take-out joint, or order whole pies in the small adjacent no-frills dining room. In the wee hours, lines often snake for the artichoke-spinach slice, which tastes like cheesy dip on crackers. Those in the know opt for the less greasy Margherita slice. Make sure you're hungry and be prepared to stand in line a while. Or try the more formal Artichoke outpost underneath the High Line at 114 10th Ave.