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Fortification tunnel in Gibralter rock.
Group of miners working at the mine and walking through a tunnel
Mine salt entrance in Nemocón, Cundinamarca, Colombia. The region is well known for its salty mines. Although they are no longer in production they are open for toursim
Abandoned railway in mine tunnel
Details of the interior passages of The Bent Pyramid of king Sneferu, A unique example of early pyramid development in Egypt, madse of ancient limestone, selective focus
Cargo skip shaft of an underground mine
Interior of a gold mine with visible gold-bearing quartz pebble conglomerates. Shot in the UNESCO Vredefort Dome World Heritage Site, North-West Province, South Africa.
Beautiful waterfall marble gorge flowing like a dreamy scenery in Taroko Hulien, Taiwan
Image has been taken in Kale which is a town and a district of Denizli Province of Turkey. We are 150 meters under the earth now. This is lignite coal. There is no light. Actually there is no air. Miners are on break now. Image is grainy little bit.
An underground tunnel, rails and wagons for the city's wastewater
Chalky mine tunnel with traces of drilling machine, Belgorod, Russia.
Dimly lit depths of an underground tunnel within a mine shaft
Mine The Jayona is an old iron mine located in the mountains of the same name in the town of Fuente del Arco province of Badajoz, Spain. Declared a natural monument
Long steps towards mine tunnel
The Salt Cave in Cankiri is a very ancient cave that shows records of human activity dating back to the Hittite period ( Turkish Çankırı Tuz Mağarası )
Rifugio antiaereo di Nera Montoro in Umbria
Group of Latin American miners walking in a dark tunnel while working at the mine
A tunnel carved into shell rock, Odessa catacombs of the 18th century, Ukraine
An interesting place to get a glimpse on how salt is extracted underground. Nemocón, Colombia. 2013
Lagazuoi war tunnel was mined to destroy the enemy on the top of the mountain
mystical energy of unknown underground. meeting with incredible magical manifestations in cave
Going through dark caves in Latvia with torchlight.
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.
view of an inactive mine shaft
Wet underground  tunnel  illuminated by blue and yellow lights
mining machinery
Cave with colorful ambient lighting
an old uranium mine
석회암 동굴의 벽 VD702
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