The Castle of Osma is a medieval castle which seems to have been built in the 10th century. It was built in stone, although Count Gonzalo Tello used some Roman structures and materials which belonged to a small Christian fortress.
The castle is divided into three walled enclosures which can be easily distinguished. Nowadays you can see the ruins of this fortress which adapts perfectly to the rocky hill between the Ucero and Abión rivers, near the famous Roman city of Uxama. It was used mainly as a defensive structure located in the natural passageway to this valley and the City of Osma. Some of the walls of the main enclosure are still standing which help to make out the floor plan and you can still see its Keep, remains of other towers, the access gate and a small door. There are also remains of the other two enclosures that improved the castle’s protection. On the outer wall that goes down the hillside, you can see the Water Tower (Torre del Agua) that is located near the river.
The Castle of Osma has experienced many battles from its first reconquest in 912 all the way up to the last in 1088, and in the 15th century, it belonged to the bishop of Osma.
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.