In Washington, D.C. a photo exhibition of nearly 100 images has opened at the National Geographic Museum. The exhibit, "Women of Vision," showcases work by 11 of the world's top women photographers who have shot photos from the battlefields of Iraq to the inner workings of the brain.
The BBC’s Jane O'Brien met some of them at the exhibition, including war photographer Lynsey Addario, who was captured by Gaddafi forces while on assignment in Libya.