The Interlocking Temple of the High Plateau

At 12,000 feet on the Bolivian altiplano lies Puma Punku. Its andesite "H-blocks" are cut with right angles, flat faces and interlocking joints so precise they look machine-milled — some megaliths run to 130 tons, hauled from quarries 90 km away by a culture with no wheel and no iron. Mainstream dat……