It houses interesting exhibitions of the Regional Museum in Tarnów: Armoury and the Gallery of Sarmatian Portraits. Most exhibits in the Armoury come from the collection of the Rzewuski family, from their castle in Podhorce (presently in Ukraine). The collected items include Polish arms from the 17th and 18th century. Beautiful interiors of the town hall’s upper floor house a collection of the portraits of the Polish gentry, known as Sarmatian portraits, from the 17th and 18th century, as well as Renaissance and Baroque furniture.