Al-Karnak (the most venerated place) is a small village in Egypt, located on the banks of the River Nile some 2.5 km north of Luxor ( 25°43'N, 32°39'E). Visitors to the area – particularly foreign tourists – perceive no distinction between Luxor and al-Karnak, as the two are both parts of the same conurbation. The Karnak Temple is twice the size of the built-up village area, and it is the leading attraction in al-Karnak; essentially this is al-Karnak, as the term Karnak is nearly universally understood as the temple complex and not the village. The key difference between Karnak and most of the other temples and sites in Egypt is the length of time over which it was developed and used. Construction work began in the 16th century BC. Approximately 30 pharaohs contributed to the buildings, enabling it to reach a size, complexity and diversity not seen elsewhere. Few of the individual features of Karnak are unique, but the size and number of features are overwhelming.