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Wierzchowska Gorna Cave in Wierzchowie, Poland.
Ryongmun limestone cave in Myoyhang Mountains, North-Korea.
The famous, purple-lighted Gruta Rei do Mato cave, near the town of Sete Lagoas, Minas Gerais state, Brazil
Colorful volcanic rocks in the Algar do Carvao cave, volcanic tunnel, at Terceira island, Azores
Belianska Cave (Belianska jaskyňa) in Tatra mountains
The Dupnisa Cave (Turkish: Dupnisa Mağarası), located in Strandzha Mountain Range Kırklareli, northwestern Turkey, close to Bulgarian-Turkish border.
cave with stalactites and the lightning isolated, close-up
The magical underground environment from picturesque different minerals as limonite dripstones creating stalagmites, stalactites, and stalactite spaghetti.
Famous in History for the Massacre of locals by the Vikings and for the Viking Silver that was found deep in the Cave. located approximately five miles from Castlecomer Co.Kilkenny
석회암 동굴의 벽 VD702
Long thin limestone stalactite and opposite stalagmite in Punkva Caves, Moravian Karst, Czech Republic.
Lehman Cave in Great Basin National Park, near Baker Nevada. In the Snake Mountain Range which contains limestone. Shield formation which are rare.
Inside Kents Cavern prehistoric cave / Torquay, Dorset, UK
Background photo of the cave inside the mountain. Natural formations are visible in the illuminated cave. Abstract shapes were formed with the effects of shadow and light. Shot with a full frame camera.
Khewra Salt Mines, Pakistan
Unique underground geology of  stalactites and stalagmites.
Saint Beatus, Canton Bern, Switzerland, February 12, 2023 Incredible beautiful rock formations inside the popular Saint Beatus caves near Interlaken at the lake of Thun
The internal texture, wonderful stalactites, stalagmites and magnificent internal structure of the newly discovered cave
One of the caves of Lanzarote: indoor picture of the sedimentary rock. Close-up and full frame picture.
Bulak cave in Safranbolu. Its length is 6 km and the first 400 meters are open to visitors. It is a natural wonder with its stalagmites, stalactites, travertines, ponds and underground water source.
View of stalactites and stalagmites in cave.
Iron stairs with railings in an underground cave. Clay stalactites hang from the ceiling and stalagmites grow from the floor. Speleological research and study of caves and the bowels of the earth
Background photo of the cave inside the mountain. Natural formations are visible in the illuminated cave. Abstract shapes were formed with the effects of shadow and light. Shot with a full frame camera.
Limestone formations inside a cave
Lake Cave interior with stalactites and stalacmites, South Western Australia.
Photos from a cavern tour
Karain Cave from the Paleolithic age, where the first people lived, near Termessos National Park
The cave has naturally formed 400 meters of corridors and halls. The cave has hosted many choral music performances, thanks to the excellent acoustic conditions.
Lehman Cave in Great Basin National Park, near Baker Nevada. In the Snake Mountain Range which contains limestone. The limestone has been removed by water and carbon dioxide to create the cave and the internal structures.  Columns result when a stalactite and a stalagmite join.
Free Images: "bestof:Pooles Cavern 13.jpg The Mary Queen of Scots Pillar in Poole's Cavern in Buxton Derbyshire England Own 2007-06-22 Dave Pape PD-user Poole's Cavern Davepape"
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