Journalist Ari Rabinovich has written about the Jerusalem Syndrome here. He briefly describes JerSyn in these words:
Only about a dozen Jerusalem tourists per year suddenly get agitated, imagine themselves to be characters from the Bible, fashion makeshift togas out of hotel sheets and go out to holy sites to recite the Psalms, sing hymns or harangue passers-by to repent.
It is a fascinating article, and also has a link to another article he has written, “Come to Jerusalem, see the Messiah?”
I think you will admit that the view of Jerusalem from the descent of the Mount of Olives is breathtaking. It is even more so when you see it in person.