The Graz Clock Tower (Uhrturm) is the city's symbol and one of its most important historical landmarks, located atop Schlossberg. The 28-meter-high tower dates back to the 13th century and was transformed into its current form in 1569. It features three large clock faces with over five-meter diameters and golden hands. What makes it unique is its quirky reversed clock: the large hand shows the hour while the small hand marks the minutes. This design comes from when the clock originally only had an hour hand so it could be seen from far away. The tower survived Napoleon's siege in 1809 when citizens paid a ransom to save it.