The Musical Instruments Museum, known as the MIM, is one of the finest of its kind in the world, housed in a spectacular Art Nouveau former department store. Its ticketed galleries display thousands of instruments from across the globe and through the ages, and visitors wear headphones that play the sounds of each instrument as they approach. Combining a stunning building, a remarkable collection and an immersive audio experience, topped by a rooftop cafe with fine city views, it is a delight for music lovers and a highlight of Brussels.