祖母绿洞(意大利语:Grotta dello Smeraldo)是一个海洞,位于意大利南部阿马尔菲海岸的小镇康加德马里尼。
The Balve Cave (German: Balver Höhle) is the biggest cultural cave in
The Speedwell Cavern is one of the four show caves in Castleton,
The Blue John Cavern is one of the four show caves in Castleton,
Carter Caves State Resort Park is located in Carter County, Kentucky,
海神洞穴(義大利語:-{Grotta di Nettuno}-; 加泰隆尼亞語:-{Cova de Ne
大卫城 (英语:City of David 希伯来语:-{עיר דוד}-) 是耶路
Demänovská Cave of Liberty (Slovak: Demänovská jaskyňa Slobody) is a
Sea Lion Caves are a connected system of sea caves and caverns open to
The silver mines of Kongsberg, in Buskerud county in Norway,
The Great Siege Tunnels in the British Overseas Territory of
The Cave Bath is a thermal bath in a natural cave in Miskolctapolca,
Ochtinská Aragonite Cave (Slovak: Ochtinská aragonitová jaskyňa, Hun
Grjótagjá is a small lava cave near lake Mývatn with a thermal sp
Endless Caverns is a commercial show cave located 3 miles south of New
The Bacho Kiro cave (Bulgarian: пещера „Бачо Киро“) is situated 5 kil
El Soplao is a cave located in the municipalities of Rionansa,
The Pindaya Caves (Burmese:
Пече́ра «Змії́на» — найбільша карстова порожнина Внутріш
Cueva del Viento-Sobrado (Wind Cave) underground complex is the