Upscale Koningswijk, or Quartier Royale, centers on the Royal Palace of Brussels, with grand halls such as the opulent Mirror Room, and the tree-lined paths and fountains of Parc de Bruxelles. The underground ruins of the Coudenberg palace show the area’s medieval layout. The Palais des Beaux-Arts hosts music, film and art, while there are over 7,000 items and regular concerts at the Musical Instruments Museum (MIM).