The New York outpost of one of France's most venerable fashion houses makes its home in the dazzlingly modern LVMH tower. The designs bring elements of everything from raceways to skate punks to haute couture. If you're not in the market for an investment gown, peruse the glam accessories, like the latest stirrup bag. The Dior menswear boutique is just next door. Subway: E, V to 5th Ave./53rd St. Other location: Men's store, 21 E. 57th St., PHONE: 212/207-8448; Subway: E, V to 5th Ave./53rd St.