Hiroshima before (top) & after (bottom). An aerial view of the mass destruction on Hiroshima caused by "Little Boy". Out of 90,000 buildings, 60,000 were destroyed. (picture): http://alonglookatyou.blogspot.ca/2010/01/hiroshima-before-and-after.html source (info): http://www.atomicarchive.com/Docs/MED/med_chp9.shtml
Paul Tibbets stands by the Enola Gay in an undisclosed location. The Enola Gay a B-29 was the first plane to drop an atomic bomb. Tibbets, his crew, and the Enola Gay dropped the bomb (Little Boy) on Hiroshima Aug 6, 1945. Three days later another bigger bomb (Fat Man) was dropped on Nagasaki. The two bombs effectively ended the war in Japan.