IN PREVIEW. One of fashion’s oldest houses, serving as both shopping mecca and museum. Designer Nicolas Ghesquiere may be gone, but brand still nails the avant-garde high end. Motorcycle bags are all the rage and Anna Wintour is counted as a frequent customer. Sculpted-shoulder silk dress, leopard-print ballet flats, architectural men’s jackets. Under the Gucci umbrella, lux line provides a wide selection for both dreaming and drooling. Soho spot is men’s only—head across the street for the ladies.