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Incan Wall (1400s CE), a fine example of master Stonemasonry, Cuzco, Peru. Incas did not need to use cement firstly because the adjoining surfaces between two adjacent blocks fit so perfectly and exquisitely together, and also because stones were interlocked in a combination that could not be budged. Construction of Inca walls is one of the many fascinations you can discover while visiting Cusco. Inca stone masons would work the stones until their shape fit exactly alongside all of the other blocks that would be positioned alongside that block. The ingenuity of Inca stone masonry doesn’t stop at fitting a few blocks together just to build their inca walls. Such construction was necessary to prevent destruction in the event of all too regular earthquakes, and the walls were so designed that they would absorb the impact. The Spanish conquistadores suffered from many of their buildings being obliterated by earth quakes because they did not take heed of Inca methods. #archaeohistories