Paris offers many unique experiences and spaces, including the Collette Concept Store, Phillipe Starck’s ‘Mama Shelter’, and the Arab World Institute. As a city known for its arts, Paris has many cultural institutions to offer, such as the Musee des Arts Decoratifs and 104 (Centrequatre). Unique neighborhoods in Paris include Bellevelle and Gambetta. For arts, Brussels offers the annuel comtemporary art exhibition Art Brussels, as well as Flagey, a cultural center for music and film. Atomium, built for Expo 58, is a spherical architectural sculpture in Brussels. Marolles and Ixelles are some of the definitive districts of Brussels.