The avenue which went in a straight line for about 2,700 m between the Luxor Temple and the Karnak area was lined with human-headed sphinxes; in ancient times it is probable that these replaced earlier sphinxes which may have had different heads. This was used once a year in a festival during which the image of Amun travelled from Karnak to visit his southern dominion. It was at Luxor temple that he was transformed into Min the god of fertility.