 The Brihadisvara Temple was declared a World Heritage Site by UNESCO in 1987; the Temple of Gangaikondacholapuram and the Airavatesvara Temple at Darasuram were added as extensions to the site in 2004.Next to menhir, stone table, and stone statue; Austronesian megalithic culture in Indonesia also featured earth and stone step pyramid structures called "punden berundak" as discovered in Pangguyangan site near Cisolok and in Cipari near Kuningan.The construction of stone pyramids is based on the native beliefs that mountains and high places are the abode for the spirit of the ancestors.