An extension of her own style and vitality, Antonia Giaenti’s trendy Brera boutique is stocked with a hand-selected assortment of her favorite labels—ranging from Balenciaga and Missoni to Edun and Boy by Band of Outsiders. Wander next door to Antonia Accessories, a veritable temple to footwear, bags, and small leather goods. For those who can’t make it to Via Ponte Vetero, the boutique’s website (which also functions as a well-curated music playlist) is also worth a visit.