Home Pestera Cetatile Ponorului – una din cele sapte minuni naturale ale Romaniei Poiana Ponor poljes – large elliptical depressions in karst regions with underground drainage

Poiana Ponor poljes – large elliptical depressions in karst regions with underground drainage

Poiana Ponor poljes – large elliptical depressions in karst regions with underground drainage

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