The site of the world's first A-bomb attack observed a moment of silence at 8:15 a.m. Saturday (2315 GMT Friday) - the time the bomb was dropped on Aug. 6, 1945, by the United States in the last stages of World War II.
Image: Doves fly by the gutted Atomic Bomb Dome, center in background, preserved as a landmark for the tribute to the A-bomb attack, following a speech delivered by Prime Minister Naoto Kan, marking the 66th anniversary of the world's first atomic bombing, at Hiroshima Peace Memorial Park in Hiroshima, western Japan, Saturday, August 6, 2011.