The Communal Palace is situated at the northern end of the main square of the old part of the City of Pula, called the Forum Square. The spot occupied by the Palace has been used for the public buildings since Ancient Rome, when the place was used as a part of a triade of Roman temples, of which today only the Temple of Augustus remains. The eastern of these temples, called the Temple of Diana, was used as a rudimentary city hall from the 9th century.
As the city prospered, there was a need to construct a dedicated place which would serve as a city hall, so the construction of the new city hall at the site of the Temple of Diana began near the end of the 13th century, and the new city hall was finished in 1296.
The building was constructed in Gothic style using the material of the old Roman temples and other building on the site, retaining their walls when possible. Even today, the whole northern part of the Temple of Diana is clearly visible at the back side of the Communal Palace.
Since the construction, the Communal Palace has seen numerous reconstructions. At the end of the 15th century the building was reconstructed in Renaissance style and during the 17th century, the building was again reconstructed, now in Baroque style.
The present state of building is due to several reconstructions made during the 19th and 20th centuries, the last of which was finished in 1988.
References:The Temple of Edfu is one of the best preserved ancient shrines in Egypt. It was built in the Ptolemaic Kingdom between 237 and 57 BC.
Edfu was one of several temples built during the Ptolemaic Kingdom, including the Dendera Temple complex, Esna, the Temple of Kom Ombo, and Philae. Its size reflects the relative prosperity of the time. The present temple initially consisted of a pillared hall, two transverse halls, and a barque sanctuary surrounded by chapels. The building was started during the reign of Ptolemy III Euergetes and completed in 57 BC under Ptolemy XII Auletes. It was built on the site of an earlier, smaller temple also dedicated to Horus, although the previous structure was oriented east–west rather than north–south as in the present site.