To mark 73 years since the bombing of Hiroshima, we look at 12 cities that were destroyed by conflict - and rebuilt.

1. Hiroshima

On Monday, August 6, 1945, Enola Gay, an American B-29 bomber, flown by Colonel Paul Tibbets, dropped an atomic bomb, Little Boy, on Hiroshima, directly killing an estimated 80,000 people. By the end of the year, some estimates say another 86,000 were dead from injury and radiation. Little Boy destroyed 70 per cent of the buildings in the city, a key industrial centre on the south coast of Japan's Honshu island which had a number of large military supply depots.

By Hugh Morris