In the mammoth new 57th Street store, vintage examples of Vuitton's famous monogrammed trunks float above the fray on the ground floor, where shoppers angle for the latest accessories. Joining the initials are the Damier check pattern and colorful striated leathers, not to mention devastatingly chic clothes and shoes designed by Marc Jacobs. Subway: E, V to 5th Ave./53rd St. Other location: 116 Greene St., between Prince and Spring Sts., SoHo, PHONE: 212/274-9090; Subway: R, W to Prince St.