Istanbul, city of pushcarts. From some, you can buy steamed ears of corn or baked potatoes with an assortment of toppings, roasted chestnuts, fresh fish sandwiches. Or breakfast rolls and simit. From others, fresh produce, much of it from family farms or even city gardens. In this case, “super” walnuts, artfully displayed within a wreath of leaves. And in the background, some empties, and one with what looks like clothing. Or fish. Just ask the vendors sipping tea at that nearby table.