Siwa hit the news in 1991 when it was claimed that the tomb of Alexander the Great had been found. It was a structure with Macedonian inscriptions in Greek letters, it was 55 metes long and complete with much decorations.
It had been discovered by Greek Liana Souvlatzi, but the dimensions of the possible discovery apparently clogged her objectiveness. It was later on discovered that some of the inscriptions had been misread, and now she is not allowed to return to the site for further excavations.
The most popular theory for the tomb is that it belonged to a Macedonian general. However, the tomb might give hints to where Alexander is buried. It is not certain that he was even buried in Siwa according to his wish, rather in Alexandria. For the casual visitor, there is little to see except the long corridor. All moveable objects have been put into sealed storage rooms.