Yang’s Fry-Dumpling is quite possibly the most famous dumpling vendor in the city, with lines out the door to prove it. This Shanghai institution isn’t much more than a street stall that doles out dumplings in large quantity, but fans don’t wait in line for the décor. There are only a few options on the menu, but once you taste the pan-fried shen jian bao (pork dumplings encrusted in sesame seeds and scallions), you’ll understand how it became so popular.