Piarist Church - Credit: Wikimedia Commons
The Piarist Church, also known as the Church of Maria Treu, is a Baroque parish church of the Order of the Piarists (Patres Scholarum Piarum) in Vienna, Austria. It is located in Vienna's 8th district (Josefstadt). The Piaristenkirche was elevated to the rank of Basilica Minor in 1949. Read more on Wikipedia
Source: en.wikipedia.org