Zamek książąt Sułkowskich

The oldest and largest historic building in Bielsko-Biała, raised in the 14th century on the edge of the Old Town. It served the Cieszyn Piasts and guarded the border on the Biała river, later becoming a noble residence; a 19th-century rebuild gave it an eclectic façade facing Bolesław Chrobry Square. It now houses the city museum, whose branches include the Julian Fałat Museum and the Museum of Technology and Textile Industry.