Burgers, shakes, sodas and pretty much all the classic fast food staples can be found at this revered burger joint in Madison Square Park. In addition to addictive burgers and shakes, the Shack offers a leafy outdoor setting for its patrons to watch the city go by. The surprise here is that they serve booze with your burger; from beer, to reds and whites available by glass and bottle, grab one and try to find a spot on the grass. What's more, they're dog-friendly and they have a few things on the menu as well for your pooch. During the spring and summer, the line outside can be inexorably long, however there are other locations around Manhattan which are only a cab ride away.