As the title says, it seems the most impressive monuments we have today, such as the Great Pyramid at Giza etc. were built in some of the earlier dynasties (such as 4600 years ago in the 4th Dynasty for the mentioned pyramid at Giza). Why is this? Why did they stop building such great monuments in later dynasties? I would think that as their civilization grew in size and complexity, and they developed more tech, they would be able to create larger and better monuments still. What changed?
There's always more to be said on the topic, but I wrote about this in Why was there such a long period without the construction of pyramids in ancient Egypt? Khendjers reign was around 1760BC and and the next pyramid wasn't erected until 721BC by Piye?