Brussels has possibly one of the most beautiful squares in Europe and the jewel in Brussels' crown. The Grand-Place is Brussels' top tourist attraction justified by the Gothic magnificence of the Hôtel de Ville (Town Hall) and the Baroque exuberance of the late seventeenth-century guild houses surrounding the square. Royal Museum of Fine Arts (Musées Royaux des Beaux Arts) a great museum, combining four interconnected sections of old masters and modern art collections. Together they make up Belgium's most complete collection of fine art with works by, amongst many, Pieter Bruegel, Rubens, Delvaux and Magritte. Nex is the Atomium, built for the 1958 Brussels World's Fair, a 103m (335-foot) tall Atomium monument represents a unit cell of an iron crystal, magnified 165 billion times, with vertical body diagonal, with tubes along the 12 edges of the cube and from all 8 vertices to the centre. Mini-Europe is shows the European Union in one attraction Park. Don’t miss La Bourse/De Beurs and Manneken Pis, a small bronze fountain sculpture depicting a little boy urinating into the fountain's basin. Similar statues can be found in the Belgian towns of Geraardsbergen, Broksele and Hasselt.