A great place to eat while you're in the neighborhood is Ra, a concept shop stocked with art books and clothing and shoes from cutting-edge fashion designers from around the world. Upstairs there's a sale room with steep discounts on the pricey goods, and downstairs near the entrance is a cozy cafe with sidewalk seating—a prime spot for stylish people-watching.  Best of Belgium: Three Days in Antwerp by Jaime Gillin