The biggest facts in Southeast Asia (🇮🇩🇵🇭🇲🇲🇻🇳🇰🇭🇹🇭). ••🇮🇩Indonesia has the largest mangrove forest in the world. ••🇵🇭The Philippines has the largest pearl in the world. ••🇲🇲 Myanmar is the largest and best ruby ​​producing country in the world. ••🇻🇳Goa han sog dong is the world's largest cave in Vietnam. ••🇰🇭Angkor Wat is the largest temple in the world in Cambodia. •• 🇹🇭The world's largest golden Buddha statue is in Thailand.