Gebel al-Silsila is a mountainous region with sandstone quarries on both sides of the Nile. The sandstone quarries of Gebel al-Silsila have been used from the Middle Kingdom (c. 2034–1650 BC) until the 20 th  century. More than a hundred quarries were exploited to extract the sandstone blocks needed to construct many of ancient Egypt’s famous temples. The quarries have preserved tool marks and workers’ inscriptions that can be seen today. The close up picture below is the qua

T he  Temple of Edfu  is an  Egyptian temple  located on the west bank of the  Nile  in  Edfu ,  Upper Egypt . The city was known in the  Hellenistic period  in  Koine Greek after the chief god  Horus , who was identified as  Apollo .  It is one of the best preserved shrines in Egypt. The temple was built in the  Ptolemaic Kingdom  between 237 and 57 BC. The inscriptions on its walls provide important information on language, myth and religion during the  Hellenistic period