Saint Leopold Church (Kirche zum Heiligen Leopold) is the Roman Catholic parish church of Donaufeld in Floridsdorf, the 21st district of Vienna. Located at Kinzerplatz, it stands at a height of 96m (315ft), which makes it the third tallest church in Vienna. Construction was completed in 1914. Earlier plans to construct the church as a cathedral in order to house a bishop were abandoned when Floridsdorf was merged into Vienna in 1904. It is dedicated to Saint Leopold, patron saint of Austria.

Text Source: Wikipedia