The architecture of ancient egyptian civilization it was generally architrave or lintelled. This means that, instead of using the arch or the vault, they built straight figures that supported on columns or pillars. An example of this is the Temple of Hatshepsut, in Deir el-Bahari, Egypt. You have all the information in: «Egyptian architecture: characteristics and main examples«.
You have all the information in: "Egyptian architecture: characteristics and main examples".