So I was just looking at some stuff about the tomb of Tutankhamen and I noticed something that seem confusing to me. Why are the Great Pyramids of Giza located so far away from the Valley of the Kings?
Because the pyramids are from a different time and a different world really. The pyramids of Ghiza were build at around 2700 B.C and were built during the old kingdom. The valley of the kings was built during the new kingdom about 1200 years later. Basically the egyptian state had collapsed twice at this point and the capital was moved accordingly. TLDR: The valley of the kings was closer to the new capital, and old egypt existed for longer and was less coherent than we might expect today.