St. Stephen's Cathedral (actually St. Stephen's Cathedral in Vienna) on the Stephansplatz in Vienna (district of Innere Stadt) has been a cathedral since 1365 (Domkapitels), since 1469/1479 cathedral (episcopal see) and since 1723 Metropolitan Church of the Archbishop of Vienna.
The building is 107 meters long and 34 meters wide. The cathedral is one of the most important gothic buildings in Austria. Parts of the late Romanesque predecessor building from 1230/40 to 1263 are still preserved and form the west facade, flanked by the two heath towers, which are about 65 meters high. Overall, the Stephansdom has four towers: The highest is the South Tower with 136.4 meters, the North Tower was not completed and is only 68 meters high. In former Austria-Hungary no church higher than the south tower of St. Stephen's Cathedral was built. For example, the Cathedral of the Immaculate Conception in Linz was built two meters lower.
The South Tower is an architectural masterpiece of the time; despite its remarkable height, the foundation is less than four meters deep. There are a total of 13 bells in the south tower, eleven of which are the main ring of St. Stephen's Cathedral. The Pummerin, the second largest free-swinging church bell in Europe, is located since 1957 in the north tower under a tower dome from the Renaissance period.