(VOVWORLD) -The westernmost point of Vietnam's mainland, Milestone No Zero A Pa Chai is located at the T-junction of Vietnam-Laos-China border in Sin Thau Commune, Muong Nhe District, Dien Bien province. There's a joke that A Pa Chai is the place where a rooster crows, people in all three countries of Vietnam, Laos, and China can hear.
Hai Ngo