A stroll around the Quadrilatero d'Oro, the world's most famous shopping district, is a must even for those not sartorially inclined. The quaintly cobbled quadrangle of streets – loosely bound by Via Monte Napoleone, Via Sant'Andrea, Via Senato and Via Manzoni – have long been synonymous with elegance and money, and even if you don't have the slightest urge to sling a swag of glossy shopping bags, the window displays and people-watching are priceless.