People visit the photo exhibition entitled "Building A New Bridge: President Nixon's Legacy in Three Chinese Cities" in Yorba Linda, California, the United States, Jan. 23, 2018. Late U.S. President Richard Nixon has entered the spotlight again, as a special photo exhibition mirroring his historic visit to China in 1972 and its impact was inaugurated on Tuesday at his hometown of Yorba Linda in California. (Xinhua/Li Ying)