Jerusalem is not just another city that illustrates the conflict between interests of professional planners and competing political perspectives. It is the Holy City, with a history of some 3,000 years. Moreover, numerous layers of historical remains have importance for intense and competitive religious and national interests. Israelis claim it as the capital of their country, and Palestinians want it--or part of it--as the capital of their not yet created state.

Jerusalem is also a place where more than 700,000 people live, and the center of a metropolitan area with more than...