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Lighting shows off selenite crystals in the gypsum walls of the Alabaster Caverns State Park, Oklahoma
Kurdistan, Iran - may 17, 2017 - Kurdish people have come to visit the Karaftu cave in Kurdistan in Iran
The salt cave Kolonel in Mount Sodom in southern Israel
Terni, Umbria, Italia: Piccolo gioiello bello e delicato dei Monti Martani alle porte di Cesi
Limestone rock formations
Kaklik Cave in Denizli, Turkey
This is an afternoon trip inside the Sterkfontein Caves Gauteng, where the first beings on earth were discovered.
Rock formations (speleothems) include stalactites, columns, flowstone and drapery in Gothic Palace area of Lehman Caves, Great Basin National Park, Nevada, USA.
Picture of stalagmites and stalactites inside Phung Chang Cave, Phang Nga, Thailand.
Geologist exploring stalactites and stalagmites in cave.
Sterkfontein, South Africa - November 22, 2011: Sterkfontein is a set of caves in Gauteng province, with special interest to paleo-anthropologists. The area is known as the Cradle of Humankind.
Cave wall stalactites creates an abstract background
Gruta do Maquiné in Minas Gerais - Brazil.
Curtain formation in Altınbeşik Cave
Cave with various speleothemes in limestone mountains
석회암 동굴의 벽 VD702
a tourist photographing the prehistoric cave by phone
The scenic views of Kaklık cave which is full of dripstones, stalactites and stalagmites. There are also travertine formations and a small thermal lake at the bottom of the cave in Denizli, Turkey
The stunning interior of Hoq Cave in Socotra, Yemen, reveals a mesmerizing display of stalactites and stalagmites illuminated in blue and white light.
Stalagmites and stalactites
Bridge in Bolii cave ( Pestera Bolii ), near Petrosani city, Hunedoara county, Romania. The cave is artificially illuminated and is open to visitors.
View of stalactites and stalagmites in cave.
Stalactites in a karst cave
Exploring petroglyphs in ancient rock dwellings and analysing the ancient drawings.
Experiential Travel Around South Sulawesi Indonesia
Calcite inlets, stalactites and stalagmites in large underground halls in Carlsbad Caverns National Park, New Mexico. USA
Cave on the Nullarbor Plain
La Grotta delle Tassare è la più profonda del Monte Nerone nelle Marche
Stalactites and Stalagmites, Toirano Caves, Liguria, Italy
Stalactites and stalagmites illuminated with colored lighting, natural cave.
Free Images: "bestof:Chāl-Nakhjir Cave (51).JPG en Chāl-Nakhjir is a wonderful cave with flowstone walls in Markazi Province of Iran spéléothèmes située dans la province de"
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