The civilization known for building pyramids in Egypt is the Ancient Egyptian civilization. This remarkable society, which flourished along the Nile River for thousands of years, is most recognized for its incredible architectural achievements, particularly the construction of pyramids, including the famous Pyramids of Giza. These monumental structures served as tombs for pharaohs and were intricately designed to ensure a successful journey to the afterlife. The pyramids reflect the Egyptians' advanced understanding of engineering, mathematics, and their deep-seated religious beliefs regarding death and the afterlife.