A large 4-m-diameter musical clock on a pedestrian bridge connecting two neighboring buildings. The clock was designed between 1911 and 1914 by the Judgenstil painter Franz Matsch, and features prominent figures from Viennese history, each with a Roman character. At noon all figures parade across the clock face, accompanied by music. During the Advent season, Christmas songs are played daily at 17:00 and 18:00.