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Safranbolu, Turkey
Ryongmun limestone cave in Myoyhang Mountains, North-Korea.
CLEARWATER Cave - Show cave tour at Gunung Mulu National Park
Unique underground geology of  stalactites and stalagmites.
Journey through a vibrant cave adorned with colorful walls, stalactites, and stalagmites, revealing the underground beauty of nature's geological wonders.
Terni, Umbria, Italia: Piccolo gioiello bello e delicato dei Monti Martani alle porte di Cesi
Darwin, NT, Australia-August 15,2018: WWII ammunitions bunker with land covering and sign with inert bomb at the Charles Darwin National Park in Darwin, Australia
Information Sign at Rusthall Commons near Royal Tunbridge Wells in Kent, England. It contains a map and illustrations regarding the countryside.
Insuyu cave from Burdur.
Spiky pneumatophores rise from the shallow seafloor of a mangrove forest along the coast of Lembata, Indonesia. This type of root is used by black mangrove trees to capture oxygen.
Karst cave, amazing view of stalactites and stalagnites in colorful bright light, beautiful natural landmark in touristic place.
Colorful volcanic rocks in the Algar do Carvao cave, volcanic tunnel, at Terceira island, Azores
A front entrance to old coal and kerosene mines in Katoomba Valley at Blue Mountain National Park
weathered Buddha sculpture in Cave 9 at Yungang Grottoes, ancient Chinese Buddhist temple grottoes built during the Northern Wei dynasty near the city of Datong, in the province of Shanxi. They are excellent examples of rock-cut architecture and one of the three most famous ancient Buddhist sculptural sites of China. The others are Longmen and Mogao.
Caves of Mira de Aire illuminated in green light on September 22, 2021 in Portugal.
Gilfenklamm gorge. Racines. Autonomous Province of Bolzano. Trentino-Alto Adige. Italy.
Backpacker woman standing on Rainbow cave (Keshet Cave, Galilee, North of Israel).
Damlatas cave in Alanya. Popular tourist place in Turkey. Famous and unusual places of the world. Tourist routes
Cennet and Cehennem, Mersin, Turkey-December 31, 2023: people are visiting the two large sinkholes called Cennet Cehennem in the Taurus Mountains, in Mersin  which are among the tourist attractions.
Giant Cave is a karst cave explored in 1840 located on the Karst plateau, a few kilometers from the city of Trieste
Bouquet of aragonite, Gouffre Géant de Cabrespine, Giant chasm of Cabrespine
Underground cave at Mulu national park
Mandeville, Louisiana, United States – February 10, 2018: Mandeville, Louisiana - February 2018: The former railroad station in the center of Mandeville nows provides a public space along the Tammany Trace.
The Dupnisa Cave (Turkish: Dupnisa Mağarası), located in Strandzha Mountain Range Kırklareli, northwestern Turkey, close to Bulgarian-Turkish border.
Kenting National Forest Recreation Area in Hengchun Township, Pingtung County, Taiwan
Kaklik Cave in Denizli, Turkey
Wind cave in Garfagnana, Tuscany, Italy
Aerial view of the Blue Eye, natural spring in the Albanian mountains with various footpaths
Ancient Minoan sacred  Psychro cave where god Zeus was  born. crete, Greece
Dobongsan Mountain, Seoul Korea 도봉산
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