Summary: Ask most Muslims what the holiest site is in Islam, and they would all obviously tell you it is the Kaaba at the Great Mosque of Mecca. Ask most Christians what the holiest site is in Christianity, and you might get a blank stare or at least several different answers. Through most of Christianity, there has been one place that has been agreed upon as the holiest site, and it has been the cause of wars and disagreements which have continued to this day.
