Hmm... not sure about that. The temple at Siwa oasis where Alexander consulted the oracle still stands. A few years back a coffin which has been in a museum for decades was identified as having been possibly, hmm, maybe I’ll look before I leap on this one...
Okay, so, I can’t find what I’m looking for. I did find this old file. The links are dead per se, but I had no trouble pulling up the pages on the wayback machine.
http://www.greece.org/alexandria/tomb2/arabs.htm
http://www.greece.org/alexandria/tomb2/burial.htm
http://www.greece.org/alexandria/tomb2/church.htm
http://www.greece.org/alexandria/tomb2/destruction.htm
http://www.greece.org/alexandria/tomb2/mosque.htm
http://www.greece.org/alexandria/tomb2/myth.htm
http://www.greece.org/alexandria/tomb2/search.htm
http://www.greece.org/alexandria/tomb2/sources.htm
http://www.google.com/search?q=Siwa+oasis
Here’s the so-called Alexander Sarcophagus (and image search), which merely has images of Alexander sculpted into it:
http://images.travelpod.com/users/eddieandlynn/1.1237836060.the-alexander-sarcophagus.jpg
http://www.google.com/images?q=%22Alexander+Sarcophagus,%22&sa=X&oi=image_result_group
Uh, okay, this isn’t what I remember either, but it may be a start:
http://www.archaeology.org/online/features/alexander/tomb.html
I’m going with Plutarch and the Roman historians who say a couple of their emperors visited the tomb in Alexandria.
The article pretty well demolishes the Souvaltzis claims which made no sense anyway as the Macedonian generals obviously had no feelng of obligation to Alexander about what to do with his remains..
My guess is that they were on the way to the family tomb in Macedonia when diverted by Ptolomy to Egypt for political purposes: to shore up his claim to Egypt by associating himself with Alexander the God.