<a href="//commons.wikimedia.org/wiki/Genga" title="Genga">Genga</a>, <a href="//commons.wikimedia.org/wiki/Marche" title="Marche">Marche</a>, <a href="//commons.wikimedia.org/wiki/Italia" title="Italia">Italia</a><br>Grotte de Frasassi, le "Canne d'Organo"
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