Linz is a city in Upper Austria, located on the Danube River between Salzburg and Vienna. On the main square in the Old Town tower buildings in the Baroque style, including the Old Town Hall and the Old Cathedral. At the river there is a modern art museum "Lentos" with an extensive collection of works by contemporary artists. On the other bank an unusual building of the Center for Electronic Arts is erected, which is devoted to the theme of society, technology and the future. The population is 200 000 people.