Karnak Temple is located on the east bank of the Nile River in Luxor, Egypt. Construction began on this temple over 4,000 years ago and went on for over 2,000 years. Covering over 100 hectares, Karnak is among the largest religious sites in the world. Just across the Nile River from Karnak Temple lies the Valley of the Kings. As the name suggests, several royal tombs are located within the valley, including the Tomb of Ramesses II.