Dieng Plateau

Dieng Plateau, is a marshy plateau that forms the floor of a caldera complex on the Dieng active volcano complex, and is located near Wonosobo, Central Java, Indonesia.
It is the site for eight small Hindu temples from the 7th and 8th centuries, the oldest Hindu temples in Central Java, and the first known standing stone structures in Java. They are originally thought to have numbered 400 but only 8 remain. The Dieng structures were small and relatively plain, but stone architecture developed substantially in only a matter of decades resulting in masterpieces such as the Prambanan complex and Borobudur. The earliest architectural usage of the Javanese demonic masks and marine monsters are exhibited along the niches and doorways of the remaining structures^[1]. The name "Dieng" comes from Di Hyang which means "Abode of the Gods".^[2] Its misty location almost 2000 m above sea level, and its mists, poisonous effusions and sulphur-coloured lakes make it a particularly auspicious place for religious tribute. The temples are small shrines built as monuments to the god-ancestors and dedicated to Shiva^[3], rather than acting as a convenience to man.
(Reference :  http://en.wikipedia.org/wiki/Dieng_Plateau )

How to come:
If you come by plane you can land at Soekarno-Hatta Airport (Jakarta) or Adi Sucipto Airport (Yogyakarta)

Bogor Botanical Gardens

The Bogor Botanical Gardens (Indonesian: Kebun Raya) are located 60 km south of the capital of Jakarta in Bogor, Indonesia. The botanical gardens are situated in the city center of Bogor and adjoin the Istana Bogor (Presidential Palace). The gardens cover more than 80 hectares and was build by Java's Dutch Governor-General Gustaaf Willem, Baron van Imhoff who was governor of Java at the time.
The extensive grounds of the presidential palace were converted into the gardens by the German-born Dutch botanist, Professor Casper George Carl Reinwardt. The gardens officially opened in 1817 as 's Lands Plantentuin ('National Botanical Garden') and were used to research and develop plants and seeds from other parts of the Indonesian archipelago for cultivation during the 19th century. This is a tradition that continues today and contributes to the garden's reputation as a major center for botanical research.
Today the garden contains more than 15,000 species of trees and plants located among streams and lotus ponds. There are 400 types of exceptional palms to be found along the extensive lawns and avenues, helping the gardens create a refuge for more than 50 different varieties of birds and for groups of bats roosting high in the trees. The bats can be easily detected by the noise they make while competing for space under the canopies. The orchid houses contain some 3000 varieties. In 1862, the Cibodas Botanical Gardens were founded as an extension of the Bogor garden at Cibodas, approximately 45 kilometers to the southeast of Bogor.
 (Reference : http://en.wikipedia.org/wiki/Bogor_Botanical_Gardens )