Considered one of the most important archaeological sites of ancient Egypt, the sacred city of Abydos was the site of many ancient temples, including a royal necropolis where early pharaohs were entombed. Abydos is also notable for the Great Temple of Abydos, of Seti I, which contains a tunnel displaying the "Abydos King List": a chronological list showing cartouche names of most dynastic pharaoh of Egypt from the first, Narmer/Menes, until the pharaohs of the last dynasty.
Adapted from Wikipedia
Abydos in Digital Egypt
Abydos in Global Egyptian Museum