While most of the world was living in tents and small towns, scraping out a meager existence, Egypt started building huge cities of brick and stone, with massive monuments and even pyramids. Did you know that the Great Pyramid at Giza was the tallest building in the world for over 3800 years?
The Seventh Plague of Egypt, by John Martin. That was the one with the burning hail.
The Sphinx and the Great Pyramid of Cheops
Random tourist at the Great Pyramid