Hoa Lo Prison, also known as the 'Hanoi Hilton', was a notorious prison in Hanoi, Vietnam. It was used by the French colonial government to house political prisoners during the French occupation of Vietnam, and later by the
From Wikipedia
Hỏa Lò Prison was a prison in Hanoi originally used by the French colonists in Indochina for political prisoners, and later by North Vietnam for U.S. prisoners of war during the Vietnam War. During this later period, it was known to American POWs as the "Hanoi Hilton". Following Operation Homecoming, the prison was used to incarcerate Vietnamese dissidents until its demolition between 1993 and 1994. Its gatehouse remains a museum.