The dentist delivering babies in Syria

Mohammed Darwish is running an underground clinic in Madaya, a town under siege in Syria.

Alice Glenn from Melbourne started No Lights, No Lycra, the living room nightclub craze that's now sweeping the world.

Mandy Harvey is a jazz singer from Colorado who lost her hearing as a teenager.

Wang Yan owned a steel factory in Changchun, but when his pet dog went missing he was inspired to change his life.

(Picture: The Syrian town of Madaya. Photo credit: Louai Beshara/AFP/Getty Images.)