In-N-Out Burger is a popular fast food chain that originated in California and has gained a cult following for its delicious burgers. While not available at Retiro subway station, it's worth mentioning for burger enthusiasts. In-N-Out Burger offers a simple menu with options like the Double-Double, Cheeseburger, and Animal Style burger. Their burgers are made with fresh ingredients and cooked to order. If you ever have the chance to visit an In-N-Out Burger location, be sure to try their famous burgers.