Kronprinzessin Stefanie-Warte

The Stephaniewarte is an 1887 iron lookout tower perched on the 484-metre summit of the Kahlenberg in Vienna's 19th district of Döbling. It was named after Crown Princess Stephanie, wife of Habsburg heir apparent Rudolf, and reflects the late-19th-century bourgeois enthusiasm for the Wienerwald as a recreational landscape. Now a protected monument operated by the Döblinger Naturfreunde, the tower offers sweeping views across Vienna's rooftops to the eastern Alps on clear days. It opens seasonally from May to October — Saturdays from noon, Sundays and public holidays from 10 a.m. — making it a classic weekend destination for hikers and cyclists ascending the Kahlenberg.