Join Date: Mar 2006
Location: CSA Consulate, Rm. 101, Glos. UK: p.s. - Real Dogs Have Feathering.
statues with hats and protruding top knots immediately hints at rapa nui (easter island) but those have rather longer faces. korea oddly enough has some islands with rounder faced simple prehistoric stone statues and hats with topknots or knobs of some sort. the americas, as mentioned have a variety of cultures other than aztec, mayan. inca.
as basic as this statue is, with very limited features that can be pinned to a specific culture, you may have some difficulty finding out where it's from, possibly chemical analysis of the stone would be able to determine it's origin, tho it could have been carved after being transported and traded a fairly large distance, even over seas. trade routes even in the stone age are unbelievably complex.