‘Salt layers reflect in the inner lake of Turda salt mine in Turda city (450km northwest of Bucharest), on December 9, 2010. One of the most important salt mines in Transylvania, central Romania, Salina Turda has been known since ancient times, but was put into operation for underground mining work during the Roman period.’ (Daniel Mihailescu/AFP/Getty Images)

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Daniel Mihăilescu, Bucharest, Romania