Egypt Major cities and Attractions?

Travel Info
What are a few places people would want to visit when they go to Egypt? I need 3 major cities where a major tourist attraction is being held, such as Cairo (near the Tomb of King Tut for example)

Travel Tips

Cairo and Giza are 2 cities but are actually considered one, there u can find the pyramids and the Egyptian museum.
Luxor and Aswan are amazing and they have 1/3 of the world's monuments.
Others

mmm...i think cairo(Gizza) to see the pyramids and sphinx
luxor and aswan but they're realy hot in summer
and Alexandria