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Wierzchowska Gorna Cave in Wierzchowie, Poland.
Inside view of borra cave with colorful lights, Araku Valley, Visakhapatnam Andhra Pradesh, India, March 04 2017
Close-up of the rugged rock wall lining an underground tunnel
Rocks and stones in Neptune Caves, underground rock formation illuminated with artificial light forming shadows, cracked, rough and uneven walls, Couvin, Wallonia, Belgium
Inside the Szelim cave in Tatabánya
Caves in the Zhiguli mountains. Russia.
Lake Cave interior with stalactites and stalacmites, South Western Australia.
Damlatas cave ceiling with stalactites (Alanya, Turkey). Natural abstract orange-brown pattern of mineral formations underground
Scalinata nella roccia
석회암 동굴의 벽 VD702
Volcanic cave in Tenerife, Canary islands, Spain
Massive Salt Mine Cave in Garmsar of Iran
The picturesque rock of Kalim-uscan cave Salavata Yulaeva. Bashkortostan
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.
Mammut Cave\nCave labyrinth of superlatives\nThe endless expanse of the Dachstein massif from inside, the giant Mammut Cave is one of the largest karst caves in the world.
Vertical of abandoned railroad tunnel through bedrock in Connecticut, black and white. The Shepaug Valley Railroad ran through here from 1875 to 1948. To create the tunnel, Pennsylvania miners blasted through 235 feet of schist, a metamorphic rock. It was a very tight fit for the steam locomotive and train cars. The tunnel and footpath are in the Steep Rock Reservation, a nature preserve in Washington, CT. Some people are afraid to walk through.
Close-up of a mountain cave with stalactites and stalagmites in Tuscany, Italy, Europe
Colorful volcanic rocks in the Algar do Carvao cave, volcanic tunnel, at Terceira island, Azores
Red light illuminating the dark cave walls within Mammoth Cave National Park in Kentucky
Scenic view of underground cave and lake
Beautiful illuminated stalactites and rock formations inside the Dragons Cave in Kastoria, Greece, showcasing natural geological wonders.
The Marble Cave in Crimea, Ukraine
dark cave walk under ground in tunnel
29 May 2021, Lipska Cave, Cetinje, Montenegro, interior with rich cave decorations, with different colors
Touristic Bulak Mencilis cave with walking path. Safranbolu, Karabuk, Turkey
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.
Blurred(mencilis) cavern - Safranbolu! Bulanık (mencilis) mağrası - Safranbolu!
Aydıncık, Mersin
The beginning of the underground tunnel. Entrance to the dark cave.
Cave wall stalactites creates an abstract background
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