Aioi Bridge

This guide to Aioi Bridge in Hiroshima opens with a puzzle: the bombardier of the Enola Gay had this T-shaped river junction, uniquely visible from six miles up, locked in as his aiming point on August 6, 1945, and still missed it. It follows the blast pressure the bridge absorbed anyway, estimated at many times what its steel was designed to withstand, and the streetcars and traffic that kept crossing it, warped and patched, through decades of rebuilding the city around it. Stand at the point where the rivers split, exactly where the aim was set that morning.