Con Son Prison, located on Con Son Island in Vietnam, was established by the French colonial government in the late 19th century. It was primarily used to detain political prisoners, including those opposing French rule. The prison is notorious for its harsh conditions and brutal treatment of inmates. After the Vietnam War, the prison was closed and later became a historical site. Today, it serves as a museum, educating visitors about the struggles of political prisoners and the history of Vietnam's fight for independence. The site attracts tourists interested in learning about the country's past.