Caves of Europe Caves of Slovenia Wombeyan Caves (Australia) Petar Caves (Brazil) Mammoth Cave (USA) World Cave database Caves of Belgium Indiana and Kentucky Caves (U.S.A.) Movile Cave, Romania [1] Movile Cave, Romania [2] Piatra Altarului Cave - Romania Caves of Norway Swedish Caves The Jamaica Caves Caves of the Virginias Le Grotte Vulcaniche della Sicilia Digital Caves Caves in gypsum in Sicily Caves of Trentino Alto Adige CAVING WWW SITES [background: Zinzulusa cave, Castro Marina, Lecce - Italy]