If you've ever wondered what a milkshake would look like if Buddy the Elf or Willy Wonka had their way, welcome to Black Tap. These outrageous milkshakes have turned Instagram on its head, with many visitors adding Black Tap to their lists of NYC "musts." But it's not just tourists going gah-gah over these gooey treats. New Yorkers are also lining up in droves to dig in. With toppings like cotton candy, whole pieces of cake and drippy chocolate and caramel, these photo-worthy sugar bombs are definitely a super special treat. This joint also serves up burgers and beers, in case there's any humanly possible way you're hungry after demolishing this monster.