Keiko Kunichika, an atomic bomb survivor, has chosen to spend her later years running a free facility in Phnom Penh called Hiroshima House.

It was built by a group of Hiroshima citizens who recognized similar histories of ruin between the two cities.

"I remember those old days as if I had been drawn back into them," the 73-year-old recalled of her first visit to Cambodia 21 years ago.