A small archaeological exhibition presents artefacts found during the recent renovation of the town hall and carried out in the courtyard of the tenements at 21–23 Rynek. The earliest reference to the existence of a tower clock dates back to the early 16th century; it was destroyed in a fire in 1663. What remains are the clock bells currently on display in the Common Folk Room. The destroyed clock was replaced by a new one, made in the 2nd half of the 17th century, with skeleton-type clockwork. It is the oldest working tower clock in Małopolska. The new bells were cast in the workshop of Jan Felczyński in Przemyśl. The Gothic-Renaissance tower is 28 metres high. On its top is a porch – formerly a fire brigade post, whose task was to warn against fire. Originally, the tower’s tented roof was crowned with the town’s coat of arms, the ‘Leliwa’. It was replaced by ‘Pogonia’, the coat of arms of Sanguszko dukes, the heirs of Tarnów since the 18th century. At noon, the trumpet call composed by Stanisław Rzepecki in 1972 resounds from the tower.