Ranthambore National Park is not a World Heritage site designated by UNESCO. Kaziranga National Park (1985), Keoladeo National Park (1985), Sundarbans National Park (1984) were declared World Heritage site by UNESCO. The foremost attraction in Kaziranga National Park is the one-horned rhinoceros, characterized by its enormous body and massive horn. Keoladeo National Park, formerly known as the Bharatpur Bird Sanctuary, is acclaimed for being one of the world’s most important bird breeding and feeding grounds. Sundarbans National Park is most famous for the Royal Bengal Tigers, which are found in large numbers.