The ancient civilization known for its use of hieroglyphs and monumental architecture is Ancient Egypt. This civilization flourished along the Nile River, renowned for its impressive structure such as the Pyramids and the Sphinx. The use of hieroglyphs, a formal writing system, facilitated complex communication and documentation. Ancient Egyptians made significant advances in areas like architecture, mathematics, and medicine, establishing a deeply influential culture. Their art and religious beliefs were intricately tied to their understanding of the afterlife, contributing to their enduring legacy.