The temple of kalabsha is situated on Nasser island about 500 meters away from the Aswan Dam. It was established during the Ptolemaic dynasty and was successfully finished under the reign of Roman emperor Augustus. The temple was devoted to the Nubian god mandulis and it is considered the biggest free-standing temple in Nubia. The fact that Egypt was ruled by both Egyptians and Romans made the final output impressive. There are some pictures where Roman emperors and Egyptian Pharaohs were worshipping the Egyptian gods. You can take the stairs to the roof to see a breathtaking view of the lake and the High Dam.