Jerusalem

Jerusalem is a holy city to three religions, judaism, islam, and christianity. The Moslems contend that Mohammed ascended to Paradise from the city, the Jews' Temple was built in the city, and the Christians look to it as the center of the the lands where Christ lived.

Based on this contentious history, one would guess (correctly) that Jerusalem has been the center of conflict for centuries. It was the object of the Crusades, one of Saladin's conquests, and even to present day, is the object of desire for many groups.