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The incessant work of nature for 35 million years, has created the Caves of Pertosa-Auletta
Man beside a tomb in Agra, India during the british era. Vintage halftone circa late 19th century.
Muscat, Oman - 5-21-2022: Al-Hoota Cave, long exposure inside view of cave and green underground lake.
view of the castle town of Narni, Italy.
Luray Caverns in Luray, Virginia on April 9th, 2021.
Antique photograph of Houses of Parliament, Vienna, 19th Century
Fakilli Cave, located in Duzce, Turkey, offers a wonderful view with natural formations, stalactites and stalagmites
Tınaztepe  Caves in konya seydisehir.
A wall of a temple at Udaisagar lake in Udaipur Rajasthan India , made from stones in some ancient times by the kings of the state.
Ontario, Canada - 1916. Large group of geology students on an expedition along the Rideau Canal in Ontario, Canada.
Dark cave view from inside with a lumen. Stalactites and stalagmites inside the stone grotto. Colorful stones in the cave. Lighting electricity beauty of the cave.
Green algae growth on stalagtite is an alien organism in this cave. Green algae can only grow in the presence of light which was introduced into the cave by humans. Lehman Caves, Great Basin National Park, Nevada, USA.
Sasso Barisano district in the Sassi of Matera, Basilicata, Italy
Vintage photograph of Hue, Vietnam, Victorian 19th Century
Ice stalactites in the entrance of a cave on a mountain trail in winter.
Gera, Marienkirche in Untermhaus with river Elster - appearance like oil paintings
Colorful Paradise cave with big stalagmites and stalactites in Phong Nha-Ke Bang National Park, Vietnam
Aerial shot of the landscape of northern Manitoba, Canada. Vintage photograph ca. 1928.
The Zeus cave, with its beautiful stalactites an stalagmites.
Gumushane, Turkey-July 26, 2018: Karaca Cave in Gumushane. There are many natural wonders in the cave such as dripstone shapes, stalactites, stalagmites, columns, org-patterned walls, cave flowers, cave pearls and travertine steps.
Italy. Region of Piedmont, Corsaglia Valley. In the Bossea Cave (in Italian, Grotte di Bossea). Situated at 836 meters above sea level, it is one of the most beautiful and important caves in Italy, with an underground river that forms rapids and waterfalls. It is a protected area run by the Natural Park of the Marguareis Massif.
Vintage photograph Pavilion of the Ministry of War, Exposition Universelle 1889, Paris, 19th Century
The exotic of wooden walking path along at Phu Pha Petch cave in Thailand
limestone caves in Sano city, Tochigi prefecture.
Grotto at Dirou's Cave in Mani
The old ruins on the hillside Greek ghost village of Kayakoy, formerly known as Lebessos or Livissi. Sunny day, green trees. 8 km south of Fethiye, Turkey. Black and white. Unesco world heritage site
Stalagtites in a gigantic vertical stalactite cave in the mountains of Istria, Croatia
Geologist exploring caves on yellow rubber boat.
The picturesque old town and citadel of Ostuni, built on top of a hill which is crowned by its cathedral, is located in Puglia, southern Italy, overlooking the Adriatic Sea
Antique photograph, Children fishing in an inlet, Dutch, Location unknown possibly Netherlands, Victorian 19th Century
Free Images: "bestof:GrottoGroux.jpg en painting by Henry De Groux 1866-1930 my own photo of an artwork Henry de Groux ca 1900 PD-old Henry de Groux Symbolist paintings"
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