President Nixon at the Great Wall of China (24 Feb 1972), courtesy of the Nixon Library | Pieces of History

President Nixon at the Great Wall of China (24 Feb 1972), courtesy of the Nixon Library

By Hilary Parkinson | Published July 18, 2011 | Full size is 450 × 677 pixels

President Nixon at the Great Wall of China (24 Feb 1972), courtesy of the Nixon Library

President Nixon at the Great Wall of China (24 Feb 1972), courtesy of the Nixon Library

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