The Karnak Temple Complex comprises a vast mix of ruined temples, chapels, pylons, and other buildings, notably the Great Temple of Amun and a massive structure begun by Pharaoh Ramses II (ca. 1391–1351 BC).
The complex is a vast open-air museum and the largest ancient religious site in the world. It believed to be the second most visited historical site in Egypt, second only to the Giza Pyramids near Cairo. It consists of four main precincts of which only the largest, the Precinct of Amun-Re, currently is open to the general public.