Opinion

For almost 20 years, Motomachi High School in Hiroshima has tasked its art students with interviewing hibakusha -- atom bomb survivors -- and turning their harrowing testimonies into paintings.

Long popular in the West, urban exploration, or "urbex" for short, sees city-dwelling thrill-seekers explore dilapidated, closed-off buildings and areas -- often skirting the law in the process.

Oblivious to the punishing midday heat, a wheeled robot powered by the sun and infused with artificial intelligence carefully combs a cotton field in California, plucking out weeds.