The queue is long and you’ll have to eat standing up, but this spotless hole-in-the-wall does some of the best souvlaki in town. If you get antsy while you wait, be mindful of the multiple signs behind the counter saying: OXI AGXOS (NO STRESS). You won’t find frozen fries or garlicky tzatziki here. Just perfectly grilled pork skewers wrapped in a grease-free pita and garnished with sliced tomatoes, onions, parsley, a dollop of yogurt, and plenty of paprika. Don’t worry if you confuse it with the other Kostas souvlaki joint just off Agia Irini Square on Vassiliki Street, where the thing to order is pita bread stuffed with meatballs and spicy tomato sauce. Pull up a plastic chair and watch hipsters drink craft beer while you dribble tzatziki down your chin.