The main river that flows through Cairo is the Nile River. The Nile is one of the longest rivers in the world, providing essential water resources for agriculture and daily life in Egypt. Its fertile banks have supported civilization for thousands of years, dating back to ancient Egyptian society. The river also plays a significant role in Egypt's economic activities, including trade and tourism. Egypt's iconic monuments, including the Pyramids and the Sphinx, are located near the Nile, emphasizing its cultural and historical importance to the region.