Duntrune Castle is thought to be the oldest continuously occupied castle on mainland Scotland. It was originally built by the MacDougall clan in the 12th century, along with several other castles in the area, including the MacDougall stronghold of Dunollie Castle near Oban. Duntrune Castle was eventually taken by the Clan Campbell. In 1644, the castle was besieged by the rival MacDonalds, under Alasdair Mac Colla. The Campbells sold Duntrune in 1792, to the Malcolms of Poltalloch. The castle is now owned by Robin Neill Malcolm, current clan chief of the Clan Malcolm.
The curtain wall of the castle dates from the 13th century, although the tower house which forms the main part of the castle is of the 17th century. The castle was renovated in 1954.
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.