This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
President and Mrs. Nixon visit the Great Wall of China. Cropped version of File President and Mrs Nixon visit the Great Wall of China and the Ming tombs NARA tif National Archives and Records Administration Schumaker Byron ca Photographer File President and Mrs Nixon visit the Great Wall of China and the Ming tombs NARA tif