Maras Salt mine
The Salt Mines, or, “Las Salineras” are literally salt mines derived from the flow of a naturally salinized creek between Ollantaytambo and Cusco. While they were, in typical Inca style, improved upon and made beautiful, it is likely they predate the Incas by hundreds if not thousands of years. From one source, a small steam of water coming out of the mountain above, a series of gravity-powered distillation pools have been built, each just a few centimeters lower than the other. This allows a steady but very slow flow of salt water to flow over the large, flat areas and dry out into pure sodium chloride – ordinary table salt.