10 most difficult In­done­sia riddles

Prambanan is dedicated to the Trimurti, the expression of God as the Creator (Brahma), the Preserver (Vishnu) and the Transformer (Shiva). It is the largest Hindu temple site in Indonesia, which attracts many visitors from around the world. It is a UNESCO World Heritage Site since 1991.

The saltwater crocodile is the largest of all living reptiles, reaching up to 6.3 m and 1,360 kg. It may be found from Northern Australia to the eastern coast of India.

Borobudur is a 9th-century Mahayana Buddhist temple in Magelang, Central Java, Indonesia. The temple consists of nine stacked platforms, six square and three circular, topped by a central dome. It is decorated with 2,672 relief panels and 504 Buddha statues. The central dome is surrounded by 72 Buddha statues, each seated inside a perforated stupa.

Subak is the water management (irrigation) system for paddy fields on Bali island, Indonesia which was developed in the 9th century. For the Balinese, irrigation is not simply providing water for the plant's roots, but water is used to construct a complex, pulsed artificial ecosystem.

The Celebes Sea is famous for its high biodiversity. Of all known 793 coral species, 580 live in the Celebes Sea.

The Storm's stork (Ciconia stormi) is a medium-sized stork species that occurs primarily in lowland tropical forests of Indonesia, Malaysia and southern Thailand. It is considered to be the rarest of all storks, and is estimated to number less than 500 wild individuals throughout its geographic range.

With 82 million native speakers (more than French) Javanese is the largest language without an official status anywhere (and thus the largest minority language in the world), despite being used throughout Southeast Asia and Suriname.

The four largest cities in Indonesia are Jakarta (9.6 million), Surabaya (2.8 million), Bandung (2.6 million) and Bekasi (2.5 million).

The largest island in a lake on an island is Pulau Samosir in Danau Toba on Sumatra. Samosir in Lake Toba, Indonesia – 630 km2 (240 sq mi), was originally formed as a peninsula; its current island status, however, is only through its deliberate separation from the mainland by a canal.

The Bornean flat-headed frog (Barbourula kalimantanensis) is a species of frog in the family Bombinatoridae. It is a species without lungs and breathing only through the skin. Those frogs live only in the Indonesian part of Borneo, in a very small area. Although many salamanders are lungless, the Bornean flat-headed frog is the first frog known to have no lungs.