11 Madison Ave
New York, NY 10010
Long before Shake Shack was an international chain with outposts as far as Dubai, it was a hot dog stand in Madison Square Park. The original location is still in the park, but instead of a roaming cart, it's a large kiosk surrounded by a sea of outdoor tables. There are two lines, an express one reserved for cold orders (that would be the frozen custard and concretes -- get them, they're good) and a regular one for everything else, which includes the signature ShackBurgers, crinkle-cut fries, and flat-top hot dogs.