Georges Prat has studied the effects on our health of certain metals which are in fusion at the centre of the Earth. Notably, he has demonstrated that every important ancient temple is situated on a therapeutic site linked to the vibrations of these metals in fusion. Now, in the form of an atlas, he addresses the most precious metal, gold. By following the course of his researches, we are able to see that the flows of Gold and Silver, which have healing vibrations, were exploited to the maximum by our ancestors. In theory, Gold is not an essential trace element, but we are well aware that Gold, Silver and Copper were the most precious elements of ancient times, and we can easily see by following the course of the Nile that all the major Egyptian sites, pyramids and temples made systematic use of these vibrations. The same effects can be seen in South America and China.