during the war of indepencnce (it was pretty much intact in the early 1800s) The ottomans (moslems for those in rio linda) were tearing it appart to get to the lead bars to make bullets. The greeks actually gave them lead as a bribe to not destroy it. Unfortunatly the gunpowder stored by the ottmans did not work out.
It is really sad because authors of the 1700s wrote how pristine the inside art appeared.
Islam is a scourge on this planet.