On the Nile River what are some historical sites and why are they important?

Question

Like the Lighthouse of Alexandria.

Answer 1

When one cruises on the Nile, one might pass by the ancient and significant sites of Karnak itself, Luxor, on the other side of the river from Karnak, Dendera, with its grand temple to the goddess Hathor, Abydos, with its marvelous temple built by Seti I as well as being the site of Earlier Dynastic tombs, Esna, with its temple to the potter and creator-god Khnum, lord of the region who was credited as having the power over the river and its richness, Edfu, with its temple to Horus, Kom Ombo, with its double temple to Sobek and a form of Horus called Haroeris, and Aswan itself, with its mighty modern dam.

Answer 2

http://www.cruisingholidays.co.uk/river/nile/index.htm
Pick out the places and look them up in wikepedia
http://en.wikipedia.org/wiki/Main_Page