Děčín (Czech pronunciation: [ˈɟɛtʃiːn]; German: Tetschen) is a city in the Ústí nad Labem Region of the Czech Republic. It has about 46,000 inhabitants. It is the seventh largest municipality in the country by area. It is located near the border with Germany, at the confluence of the Elbe and Ploučnice rivers, on the border of two protected landscape areas. Děčín is an important traffic junction of land, rail and water transport. The city first developed due to the importance of the Elbe River as a transport route and, from the mid-19th century, due to the important railway connection between Prague and Germany. Secondary and higher education in the city is focused on transport. Tourism is also important for Děčín's economy. The main tourist destinations in Děčín include Děčín Castle and Děčín Zoo.