Thailand - Thungyai-Huai Kha Khaeng Wildlife Sanctuaries

"Stretching over more than 600,000 ha along the Myanmar border, the sanctuaries, which are relatively intact, contain examples of almost all the forest types of continental South-East Asia. They are home to a very diverse array of animals, including 77% of the large mammals (especially elephants and tigers), 50% of the large birds and 33% of the land vertebrates to be found in this region.” 

Source: UNESCO World Heritage