The highest city in the world So the day that we arrived in Potosi, the highest city in the world, we booked a tour to the famous Potosi silver mines. The next day, we started the tour by suiting up in special trousers, jacket, wellies, hard hat and head torch (complete with stylish belt). We went to the miner's market where we were able to buy as much explosive material as we wanted (as can the Bolivians for their fight against the destruction of the Coca fields by the Americans, in fact a miner can send his children to buy explosives!). The explosives that we bought were presents for the miners. At the market we were shown the ingredients in making an explosive, dynamite (there are three kinds, Bolivian, Peruvian and Argentinian, apparently Peruvian isn't any
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