Looking at the man sculpted side of the Rock of #Gibraltar, if memory serves me correctly, this slope used to be part of a rain water collection system, which stored the water in an underground reservoir. I took this #photo 16 years ago, whilst on a day trip to Gibraltar from #Malaga. #geology #engineering #architecture #travel #tourism #tourist #IgersGibraltar #leisure #life #adventure #explore #seetheworld

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