Indonesia, officially the Republic of Indonesia, is located in Southeast Asia and partially in Oceania. With more than 13.000 islands, it is the world's largest island country. The best-known and largest islands are Sumatra, Java (with the capital city of Jakarta), Sulawesi, and Bali. Indonesia is known for its rich and diverse nature as well as being a diver's paradise. The long history is, for example, relfected in many temple complexes around the islands.