Long Night of the Churches

Tonight is the "Long Night of the Churches", an annual ecumenical project throughout Austria which offers a free look at many churches, cathedrals and monasteries. It also presents a comprehensive programme of free religious concerts, acitivities and events.
The church in this photo is Jesuit Church, also known as University Church because it is adjacent to the Old University buildings. The church was originally built between 1623 and 1637, but redecorated in 1703 when the twin towers where added and the facade reworked in an early Baroque style.