The 100-foot-high, oval-shaped citadel of Erbil towers high above the northern Mesopotamian plain, within sight of the Zagros Mountains that lead to the Iranian plateau. The massive mound, with its vertiginous manmade slope, built up by its inhabitants over at least the last 6,000 years, is the heart of what may be the world’s oldest continuously occupied settlement. At various times over its long history, the city has been a pilgrimage site dedicated to a great goddess, a prosperous trading center, a town on the frontier of several empires, and a rebel stronghold.
