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TODAY: The "Atomic Bomb Dome" is seen in silhouette during sunset over the Peace Memorial Park in Hiroshima on Aug. 5.
A dramatic sunset lit up the skies over the gutted Atomic Bomb Dome on Monday in Hiroshima on the eve of the 68th anniversary of the destruction of the Japanese city near the end of World War II.
The Genbaku Dome has been preserved as a memorial to the first A-Bomb attack where as many as 140,000 people were killed. A second atomic bombing on Aug. 9, 1945, in Nagasaki killed tens of thousands more and prompted the Japanese to surrender.
AFP - Getty Images file
1945: The remains of the Prefectural Industry Promotion Building after the bombing of Hiroshima.
On August 6, 1945, the United States dropped the first atomic bomb used in warfare on the Japanese city of Hiroshima. Sixty-six years later, NBC's Brian Williams recalls the events leading up to the historic decision President Truman stood by for the rest of his life.