HI Patriot, Wouldn't it be wise to use ASI to check whether it was man-made or not. According to some calculations, which I read a long time ago, the so called myth of Ramayan is over 100,000 year old. Thus, any man made structure will appear superficially to be natural structure. Hence, a proper survey is the only way to put the issue at rest.
In UK a survey found that quite a few (around 20%) of the yongsters think that Gandhi and Churchil are not real persons but myths.