Con Dao Prison is a historical site located on Con Dao Islands in Vietnam. Originally built by the French colonial government in the 19th century, it was used to imprison political dissidents and revolutionaries. The prison is notorious for its harsh conditions and brutal treatment of inmates. After the Vietnam War, Con Dao Prison continued to be used by the South Vietnamese government. Today, it serves as a museum, educating visitors about the struggles and sacrifices of those who fought for Vietnam's independence. The site is a poignant reminder of the country's turbulent history.