Free Walking Sightseeing Tour #3 in Vienna, Austria

The Stephaniewarte is a lookout tower built in 1887 at the summit of the 484 m high Kahlenberg in the 19th district of Döbling.

Wikipedia: Stephaniewarte (DE)

The Kahlenberg is a mountain located in the 19th District of Vienna, Austria (Döbling).

Wikipedia: Kahlenberg (EN)

The Church of St. Josef is a Roman Catholic branch church of the parish of Kahlenbergerdorf on the Kahlenberg in the 19th district of Döbling in Vienna. Before that, the former monastery church was the parish church of the settlement or former community of Josefsdorf on the Kahlenberg. It is dedicated to St. Joseph. The church is a listed building.

Wikipedia: Josefskirche (Kahlenberg) (DE), Website

The Leopoldsberg is perhaps Vienna’s most famous hill, towering over the Danube and the city. Leopoldberg’s most prominent landmark is the church which stands at the top, and which is clearly visible from Vienna below. Construction of the Leopoldsberg church, dedicated to Saint Leopold, began in 1679; an expansion following a design by Antonio Beduzzi was undertaken 1718–30. Other renovations were to follow. Across the square from the church, on what used to be a tower of the fortification system, a memorial to those Austrians who returned home from captivity after World War II was created in 1948.

Wikipedia: Leopoldsberg (EN)

The castle on the Leopoldsberg, formerly known as "Burg Ka(h)lenberg", is a hilltop castle on the summit of the easternmost foothills of the Vienna Woods, the Leopoldsberg in Vienna's 19th district of Döbling. It was a sovereign castle of the Babenbergs and later the Habsburgs.

Wikipedia: Burg am Leopoldsberg (DE)

The Leopoldsberg church is a Roman Catholic quasi-parochial church in the Kahlenbergerdorf area of Döbling. It is dedicated to Saint Margrave Leopold and is attached to the parish church of Nussdorf.

Wikipedia: Leopoldsberg church (EN)