remains along with funerary objects are placed; and Non-sepulchral including large patterned placement of stones over a wide area. The 'non-sepulchral' type is associated with astronomy and cosmology in South Asia and in other parts of the world (Menon and Vahia, 2010). In the context of prehistoric anthropomorphic figures in India, (Rao 1988/1999, Upinder Singh 2008) note that it is unclear what these giant anthropomorphs symbolize. They usually occur in association with megalithic monuments and are located in megalithic burial grounds, and may have been connected with ancestor worship. Melanesian megaliths Megaliths occur in many parts of Melanesia, mainly in Milne Bay Province, Fiji and Vanuatu. Few excavations has been made and little is known about the structures. The megalith tomb Otuyam at Kiriwina has been dated to be approximately 2,000 years old which indicates that megaliths are an old custom in Melanesia. However very few megaliths have been dated. The constructions have been used for different rituals. For example, tombs, sacrifices and rituals of fecundity. Dance sites exist next to some megaliths. In some places in Melanesia rituals are continued to be held at the sacred megalith sites. The fact that the beliefs are alive is a reason that most excavations have been stopped at the sites. Micronesian megaliths Megalithic structures in Micronesia reach their most developed form on the islands of Pohnpei and Kosrae in the Eastern Caroline Islands. On these two islands there was extensive use of prismatic basalt columns to build upland building complexes such as those at Salapwuk on Pohnpei and Menka on Kosrae. These building sites, remote from the ocean, appear to have been abandoned early. Megalithic building then shifted to constructing networks of artificial islands on the coast that supported a multitude of common, royal and religious structures. Dating of the structures is difficult but the complex at Nan Madol on Pohnpei was probably inhabited as early as c. 800, probably as artificial islands, with the more elaborate buildings and religious structures added to the site from 1000 to 1400 AD. Modern theories Purposes Megaliths were used for a variety of purposes ranging from serving as boundary markers of territory, being reminder of past events, to being part of the society's religion. Common motifs including crooks and axes seem to be symbols of political power, much as the crook was a symbol of Egyptian pharaohs. Amongst the indigenous peoples of India, Malaysia, Polynesia,