Chicago
Chicago is a city in the USA, set on Lake Michigan in the state of Illinois. It is the country's third largest city by area and population, with a metropolitan area of 9.3 million people. It is an important transport hub, with O'Hare airport and many movable bridges. Known for skyscrapers such as the Willis Tower, it is a cultural and financial centre. Average temperatures are -5°C in winter and 25°C in summer. It is best visited from spring to autumn, to enjoy the festivals and attractions.
