There have been centuries of tension along the Nile between Arabs and Nubians, 25 people were recently killed near here, and many more were injured during clashes between Arab and Nubian families, many Nubians still feel ostracized from Egyptian life. Back on the Nile, I went to visit an ancient temple that nearly suffered the same fate as nearby Nubian settlements, and was almost submerged by the rising waters of the river.

When the Nile was dammed and the lake began to rise, Egypt's ancient monuments were under threat.

Some of them were swallowed by the water, but some of them were saved.

My God, look at this. This is the temple of Isis at Philae, built more than 2,000 years ago, in 1972 it was saved from being submerged in the reservoir that rose behind the Aswan dam, the entire temple was chopped up into 40,000 blocks, moved and meticulously rebuilt on this new site.