16 Grotta della Poesia Italy-shutterstock_456991504.jpg

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Grotta della Poesia, set on the scenic Adriatic Sea, means “Poetry Cave.” A unique karstic system joins the two cavities of the Poesia Piccola and the Poesia Grande in a partially underwater complex consisting of three elliptical halls and numerous tunnels, according to Visual Italy. The caves follow a circular pattern and have two entries: one by sea at the base of the cliff and one by land in where the vault of the main hall collapsed.