Looking out over the skyline of Hiroshima, 96-year-old Junji Sarashina points out places from his childhood.
"That was my grade school. Not too far from here," he tells his granddaughter, showing her around the area.
Sarashina was 16 years old and working in an antiaircraft munitions factory when the United States dropped the world's first atomic bomb on Hiroshima on Aug. 6, 1945.
"When the bomb dropped, I wasn't able to see anything," Sarashina says.
A concrete wall saved Sarashina, but when he emerged from the rubble after the blast, an apocalyptic scene awaited him.
"That's when I saw 1,000, 2,000 people quietly moving. All wounded, burned, no clothes, no hair — just moving trying to escape the fire," he recalls.
He made his way to a Red Cross station and began to help.
"I tried