Poznań Town Hall or Ratusz is a building in the city of Poznań in western Poland, located in the Old Market Square (Stary Rynek) in the centre of the Old Town neighbourhood. It served as the city's administrative building until 1939, and now houses a museum. The town hall was originally built in the late 13th century following the founding of the medieval city in 1253; it was rebuilt in roughly its present-day form, in mannerist style, with an ornate loggia, by Giovanni Battista di Quadro in 1550–1560. The display of mechanical fighting goats, played out daily at noon above the clock on the front wall of the building, is one of the city's main tourist attractions.