The Castle of Pietrarossa ('Red Stone Castle'), built using, as its name suggests, largely red stones, dominates the city and the whole Salso River valley from the edge of the ravine upon which it stands.
The originsa castle remain unknown. It is presumed to have been built in the 9th century, but there are some historians who claim that it was built by the Sicani, a people that was present in Sicily in the 8th century before the arrival of the Greeks. The castle is towering over the whole valley of the river Salso.
Throughout history some historical events took place, in 1378 an important meeting of the Sicilian barons was held during which 4 were appointed vicars to govern Sicily. Around 1570, a strong earthquake destroyed most of the castle, today there are only two towers left.
The view that you can admire from this castle is spectacular although today the castle is in a state of disrepair. So be very careful when visiting.
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.