Once in the history, the Con Dao Islands were known as the Devil’s Island of Indochina, a place where thousands of prisoners of war were kept. It had the reputation of being one of the cruelest on the planet during that time. In the Against-American War, it was used by the Americans to torture and intimidate Vietnamese prisoners. Today, this group of 16 islands off the southern coast of Vietnam has a completely different purpose. Visitors come for the beautiful beaches and the abundance of scuba diving and snorkeling spots. However, the history of Con Dao can still be explored at some of the prison buildings that still stand. The hellish tiger cages became a feared method of abuse.