Nature and culture are prime attractions in Indonesia. The country boasts a well-preserved natural ecosystem, with rainforests covering approximately 57% of its land, equivalent to 225 million acres. Popular destinations include the forests of Sumatra and Kalimantan, such as the Orangutan Wildlife Reserve. Additionally, Indonesia is home to ancient temples like Borobudur and Prambanan, as well as traditional festivities in Toraja and Bali, which attract many travelers. The country also boasts several UNESCO World Heritage sites, including Komodo National Park and Sawahlunto Coal Mine. Other notable attractions include the colonial heritage of the Dutch East Indies in the old towns of Jakarta and Semarang, as well as the royal palaces of Pagaruyung, Ubud, and Yogyakarta.