The artists who resurrected the Warehouse District, SoHo/Tribeca/Nolita-style, are mostly gone, their galleries replaced by bars and restaurants catering to a young club-till-you-drop crowd. But the neighborhood's elegantly rehabbed brick and stone buildings are also home to boutique design firms, ad agencies and high-end furniture and antique shops. The brand-new Twins stadium, aka Target Field, has brought both architectural beauty and fan-fueled energy into the mix, and the northwestern end of the neighborhood is spawning new offices, restaurants, and cafes at a brisk clip.