Favoriten the 10th district of Vienna, Austria (German: 10. Bezirk) is located south of the central districts. It is south of Innere Stadt, Wieden and Margareten. Favoriten is a heavily populated urban area with many residential buildings, but also large recreational areas and parks. The name comes from Favorita, a semi-baroque palace complex that once served as a hunting castle but today is the Theresianum a gymnasium (secondary school) in the 4th district (Wieden). The customs facilities at the original southern border of Vienna were known as the Favoriten-Linie (Favoriten Line) while nearby houses were known as the Siedlung vor der Favoriten-Linie (Settlement in front of the Favoriten Line).