Belgium's second city, Antwerp has long been an important city in the nations of the Benelux both economically and culturally. Besides this, the city of Rubens is the world's centre for diamond processing as well as Belgium's primary seaport. The city boasts a magnificent cathedral, a fine-arts museum full of Flemish masterpieces, a maze of medieval streets in the town center, and a vibrant nightlife and cultural scene. Take a river cruise, not only to admire the famous skyline with its antique towers from the water, but also to experience the busy world port from the inside. You can also enjoy the Scheldt from the unique promenade near the Steen, the oldest building within Antwerp, which houses the National Maritime Museum with its open-air department exhibiting real ships.