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Wierzchowska Gorna Cave in Wierzchowie, Poland.
Light at the end
Lava tube, stalactite cave near Kanchanaburi, Thailand, Asia
Horizontal landscape photo of spectacular underground limestone rock formations, lit up by lights, inside the Wombeyan Caves in a reserve in the countryside near Goulburn, NSW.
Mammoth Cave NP - 1999. Scanned from Kodachrome 64 slide.
July and August -1986, old Positive Film scanned, Tourists are going to adventure Marble Arch Caves, Enniskillen,  Northern Ireland.
Stalagmites and stalactites in one of the numerous caves situated alongside the River Kwai (more correctly Khwae Noi River or Khwae Si Yok River) in Thailand.
29 May 2021, Lipska Cave, Cetinje, Montenegro, interior with rich cave decorations, with different colors
Ryongmun limestone cave in Myoyhang Mountains, North-Korea.
Caverns located in the Chihuahuan Desert and stunning treasures. They contain stalagmites and stalactites formed from dipping waters. They can form quickly or whereas limestone may take thousands of years.
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.
Horizontal landscape photo of extraordinary limestone rock formations underground lit up by lights inside the Wombeyan Caves in the countryside near Goulburn, NSW.
Limestone formations inside a cave
Karain Cave from the Paleolithic age, where the first people lived, near Termessos National Park
Background with Stalactites and stalagmites in the Sorek Cave in Israel
Moss covered rocks in Nimara Cave in Marmaris, Turkey
Insuyu cave from Burdur.
Blanchard Springs Caverns - Flowstone Close-up - 1998. Scanned from Ektachrome 200 slide.
Rock formations in Carlsbad Caverns National Park
July and August -1986, old Positive Film scanned, Enniskillen,  Northern Ireland.
The internal texture, wonderful stalactites, stalagmites and magnificent internal structure of the newly discovered cave
Cave system Skocjan, Unesco's world heritage site, Slovenia.
Inside cave
During the Roman period, M.S. It was seen that Christianity spread rapidly in the region in the 2nd century, and there was a great struggle between the idolaters and the Christians. Many underground cities in the Cappadocia region, which belong to the 3rd and 4th centuries, were built by Christians for protection, shelter and worship. Mucur Underground City is in Kırşehir province. The underground city carved into soft rocks is 7-8 m deep from the ground. In the underground city with many rooms, the corridors are wide enough to pass from one place to another and people can only move forward by bending, the barns, places of worship, dividing the corridors, and the capstones, which are large volumes and circular shaped stone masses that are estimated to be built to close the rooms. and there are ventilation shafts opening above ground.
Photograph of the walking track and forest looking out of the entrance to Yarrangobilly Caves near Talbingo in Kosciuszko National Park in the Snowy Mountains in Australia
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.
a great formation of stalagmites and stalactites named organ pipes in caves of Toirano
Lake Cave interior with stalactites and stalacmites, South Western Australia.
Korcula. Vela spilja cave in Vela Luka on Korcula island black and white view. Amazing landscape of Dalmatia region of Croatia.
Unique underground geology of  stalactites and stalagmites.
Free Images: "bestof:Nettle cave.jpg Nettle Cave one of the Jenolan Caves circa 1888 PD-Australia as a photograph taken before 1 Jan 1955 PD-Australia Jenolan Caves"
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"A New Sandow Pose (VIII)", Eugen Sandow Wellcome L0035270 - restoration.jpg
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SLNSW 13194 Women volunteer workers doing up clothing parcels at the ACF rooms taken for Australian Comforts Fund.jpg
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StateLibQld 1 160199 Merthyr (Soccer) Football Club - Third Grade, Winners Q. F. A. Cup, 1922 and Premiers, 1923.jpg
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SLNSW 10510 Jenolan Caves magnesium flashlight photograph of the official party at the unveiling of a plaque to commemorate the discoveries of various caves 23 February 1929.jpg
SLNSW 10504 Jenolan Caves unveiling of a plaque to commemorate the discoveries of various caves 23 February 1929.jpg
SLNSW 10534 Jenolan Caves Oliver Trickett addressing the guests in the Grand Arch prior to the unveiling of the plaque by Sir Edgeworth David 23 February 1929.jpg
SLNSW 10519 Jenolan Caves probably the manager of the Caves House and his wife at the time of the unveiling of a plaque to commemorate the discoveries of various caves 23 February 1929.jpg
SLNSW 10517 Jenolan Caves study of Oliver Trickett lighting his pipe at the time of the unveiling of a plaque to commemorate the discoveries of various caves 23 February 1929.jpg
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