Churches
Although it looks very old, the church was remodeled repeatedly over the course of the centuries and little is left of the 8th century origins. The church is still in use as a place of worship with services being celebrated here alongside rather expensive concerts.
If you are up for it, you will not be disappointed! Tickets can be bought right there, or at the Vienna tourist office next to the Albertina Museum.
You can have a nice little break after your church visit right in the area - it is pedestrian and full of nice little restaurants and cafes. Be aware, the evening tends to be full with youngsters partying and binge drinking - not a good place in case you are looking for peace and quiet.