Salzburg has a population of 147,685 people within an area of 65,678 square kilometers. The region is divided into 5 areas - Flachgau, Tennengau, Pongau, Lungau, and Pinzgau - each with their own largest cities. Salzburg features many rivers and lakes, including the Salzach and Wolfgangsee, and is home to cultural sights such as the Festung Hohensalzburg fortress, Mozart's birthplace, and the Salzburg Cathedral.