The Olympic Games are organized12 by the International Olympic Committee13, or IOC. The IOC chooses the best place for the Summer and Winter Olympics every four years. Committees for the different sports and for the host country help to organize the Games. There is a lot of work to do when a country hosts the Olympics. Often new stadiums and swimming pools are needed and the host country also has to build an Olympic village where the athletes sleep, eat and relax during the Games. The host country often has to improve roads and public transport – that means more buses and trains. It is important that athletes and spectators can travel easily to and from the Games. Hosting the Olympics is very expensive, but the Games can bring a lot of money to the host country. When a country hosts the Olympics, many tourists travel there. People all around the world see and learn about the country.