EXPO-2017 is an international specialized exhibition under the auspices of the International Exhibitions Bureau, held in the capital of Kazakhstan, Astana, from June 10 to September 10, 2017. The theme of the exhibition was "Future Energy". 115 countries and 22 international organizations took part in EXPO-2017. The exhibition was visited by about 4 million people, half a million of whom came from other countries. The main object of the exhibition, which housed the Kazakhstan pavilion, was the spherical building "Nur Alem", 100 meters high and 80 meters in diameter. After the end of the EXPO-2017 exhibition, "Nur Alem" continued to operate as a museum. The Sphere complex became the pearl of the architectural embodiments of EXPO-2017. The latest technologies are used in the functioning of the building. Thus, reduced energy consumption in the Sphere was made possible by the operation of two silent wind generators. At the base of the Sphere, on an area of 5,000 square meters, is the National Pavilion of Kazakhstan, divided into two main zones. The first zone of acquaintance with Kazakhstan presented visitors with the landscape, culture, history, present and future of Kazakhstan. The Creative Energy Zone demonstrated the best projects of domestic scientists on the "green economy". Each level of the Sphere presented one direction of energy - space, sun, wind, biomass, water and kinetic energy. The last level showed Astana of the future - as it will be by 2050. The Sphere also housed four thematic pavilions that demonstrated the themes of the exhibition: "World of Energy", "Energy for the Future", "Energy for All", "My Energy of the Future".
