Stephansdom, St. Stephen's Cathedral is the mother church of the Archdiocese of Vienna and the seat of the Archbishop of Vienna, Christoph Cardinal Schönborn, OP. It is situated at the heart of Vienna, Austria in the Stephansplatz. The cathedral has born witness to many important events in that nation's history  as the most important religious building in Austria's capital and has become one of the city's most recognizable symbols.

The cathedral stands at 136 meters tall (445 ft) and is adfondly referred to by the city's inhabitants as "Steffl", St. Stephen's Cathedral's massive south tower is its highest point and a commanding feature of the Vienna skyline. There are 18 altars in the main part of the church, and more in the various chapels of which the most famous ones are the High Altar [[HA]] and the Wiener Neustädt Altar [[WNA]].

The cathedral's interior is packed with many interesting things to see. The stone pulpit [[P]] is a masterwork of late gothic sculpture. The pulpit, in the middle of the nave, bears the images of four Latin church fathers which areAmbrose, Jerome, Gregory and Augustine, all full of personality. The Pummerin bell is one of the largest bells in the world, and was cast from a cannon captured from the Turks in 1683. It rings out over the city on New Year's Eve.

There are several formal chapels in St. Stephen's Cathedral which are mainly St. Katherine's Chapel, St. Barbara's, St. Eligius's Chapel, St. Bartholomew's Chapel, the Chapel of the Cross[[PES]], and St. Valentine's Chapel.

The cathedral is open daily from 6am to 10pm. High Mass is held on Sundays and public holidays at 10:15am  which is at 9:30am in July and August.