Gary Poster, with essential assists from Galyn Norwood, Phiroon Phihakendr, Jose Quijada, Pavandeep Kalra.
Turkey is home to the richest diversity of ancient cultures yet discovered on the planet.
2001 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited. How one scientist and 678 sisters are uncovering the secrets of Alzheimer's. Photographs for TIME by Steve Liss.