The so-called Püspökkert stands out as a green isle in the center of the town, where excavations discovered significant groups of buildings in the Colonia Claudia Savaria established in around 50 AD. The foundation of the palace was possibly 200 times 200 metres. At present we only know the Western and Eastern area of the gigantic building, for the medieval round castle and the girls' school were erected on the same site.