Russian by Design For the past decade Day and Night has been the only place in St. Petersburg where fashionable types could get their fix of luxe international labels like Balen-­ciaga and Viktor & Rolf. Lately it has also begun to offer designs by such Russian stars as Denis Simachev and Alena Akh­madu­l­lina, making it a must-stop for trav­elers as well. The store's interior is an attrac­tion in itself, with the men's and women's sections as different as, well, night and day. In the women's half, con­crete floors and neo-Baroque furniture give a Louis XVI–by–way–of–SoHo feel, while the fluorescent piping on a black backdrop makes for an eerie vibe in the men's area. At 6 Malaya Posad­skaya Ulitsa; 7-812/234-2300;