The 5-star Oberdeck Studio Apartments - Adults Only Hamburg hotel is situated nearly a 5-minute walk from the indoor Mercado Mall and comes with a 24-hour front desk, late check-out, and express check-out. The smoke-free aparthotel lies in Altona, which is an upscale borough that includes the neighborhood of the same name, known for a boisterous Sunday market inside the glass-roofed, 19th-century Fish Auction Hall, a 5-minute ride from such cultural sights as Panoptikum Museum.