Organizers say the expo will feature, among other attractions, 50, 000 square meters of exhibition space, three islands in an artificial lake and the world's largest flag.

CNN: Glancing Back

The baby has been taken off its artificial respirator at least three times, lawyers for the hospital said.

CNN: Father fights mother over baby's life

Doctors have implanted artificial retinas into the eyes of three patients who had lost almost all of their vision.

BBC: Doctors fight blindness with eye implant