Al Ahram posted a nice feature on the old lighthouse of Alexandria, one of the Seven Wonders of the World. The Pharos occupies a chapter in my book Signs and Mysteries: Revealing Ancient Christian Symbols, as it appears often in ancient Christian art and literature. Basil compared Athanasius to the towering wonder that cast brilliant light to guide wayfarers to safety. Athanasius, of course, was bishop of Alexandria.
There seems to be talk about assembling the lighthouse from the rubble.