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Cave of the First World War in the tunnel system of Punta Serauta, Marmolada massif, Veneto, Italy Stock Photo - Alamy
![Cave of the First World War in the tunnel system of Punta Serauta, Marmolada massif, Veneto, Italy Stock Photo - Alamy Cave of the First World War in the tunnel system of Punta Serauta, Marmolada massif, Veneto, Italy Stock Photo - Alamy](https://c8.alamy.com/zooms/9/6e931ae5b7a94868a43f5c92f7bb0f6d/r138na.jpg)
Cave of the First World War in the tunnel system of Punta Serauta, Marmolada massif, Veneto, Italy Stock Photo - Alamy
What are some of the most fascinating 'underground lakes' that can be found inside fantastic caves around the world? - Quora
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Grotta Buontalenti, Firenze (Buontalenti Cave, Florence) | Florence travel, Surreal artwork, Cave paintings
![Cave of the First World War in the tunnel system of Punta Serauta, Marmolada massif, Veneto, Italy Stock Photo - Alamy Cave of the First World War in the tunnel system of Punta Serauta, Marmolada massif, Veneto, Italy Stock Photo - Alamy](https://c8.alamy.com/comp/R138NA/cave-of-the-first-world-war-in-the-tunnel-system-of-punta-serauta-marmolada-massif-veneto-italy-R138NA.jpg)