Hidden between two well-trodden avenues – the busy Halaskargazi and the glitz and glam of Vali Konağı – Kuyumcu İrfan Sokak is a back street in the high-end neighborhood of Nişantaşı. Here, cozy little lokantalar (Turkish diners), tobacco shops and chic cafés dwell in the shadow of the ancient Greek and Armenian buildings that give this part of Nişantaşı an aura of timeless elegance. Adding to that atmosphere is the miniscule pizzeria Azzurro Neopolitano, which in the two years since it opened has managed to snag the attention of pizza aficionados – and Italians – all over Istanbul. A quiet man, co-owner Ünal Yıldız comes out of the kitchen, his hands still dusted with flour.