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Ruby Falls - Illuminated View
Luray Caverns is a cave just west of Luray, Virginia, United States, which has drawn many visitors since its discovery in 1878. The cavern system is generously adorned with formations such as columns, mud flows, stalactites, stalagmites, flowstone, and mirrored pools. The caverns are perhaps best known for the Great Stalacpipe Organ, a lithophone made from solenoid-fired strikers that tap stalactites of various sizes to produce tones similar to those of xylophones, tuning forks, or bells.
Catedral de Sal Salt Cathedral of Zipaquira Cundinamarca in Colombia South America
Lehman Cave in Great Basin National Park, near Baker Nevada. In the Snake Mountain Range which contains limestone. Shield formation which are rare.
Mammoth Cave NP - 1999. Scanned from Kodachrome 64 slide.
Father and son exploring caves in Tınaztepe,Konya.
Image of Large underground waterfall in cave on tour path with orange and blue lights
Watkins Glen State Park waterfall view in upstate New York, USA in autumn.
Engelbrecht Cave - South Australia
석회암 동굴의 벽 VD702
Mammoth Cave
The magical underground environment from picturesque different minerals as limonite dripstones creating stalagmites, stalactites, and stalactite spaghetti.
A wall of drapery in Meramec Cavern in Stanton, MO.
Waterfall in Canyon at Night with Light Painting Colorful Colors - Canyon area with flowing water captured at night and lit with colorful lights.
Flowing waterfall underground in Niagara Cave, MN. High quality photo
Rock formations (speleothems) include stalactites, columns, flowstone and drapery in Gothic Palace area of Lehman Caves, Great Basin National Park, Nevada, USA.
Make a stop by the aillwee cave to take a look underground in a cave. There was a underground waterfall
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.
Image of Cave tour in midwest of river with blue lights and formations of stalactites
Young boy exploring caves in Tınaztepe,Konya.
Vjetrenica is the largest cave in Bosnia and Herzegovina, and the most biodiverse cave in the world.
View of stalactites and stalagmites in cave.
The internal texture, wonderful stalactites, stalagmites and magnificent internal structure of the newly discovered cave
The Dupnisa Cave (Turkish: Dupnisa Mağarası), located in Strandzha Mountain Range Kırklareli, northwestern Turkey, close to Bulgarian-Turkish border.
Blanchard Springs Caverns - Great Room Wide View - 1998. Scanned from Ektachrome 200 slide.
Unique underground geology of  stalactites and stalagmites.
Caves in Wales UK
Lake Cave interior with stalactites and stalacmites, South Western Australia.
Light from above inside Gaping Gill cave in Ingleborough, Yorkshire Dales National Park (England).
Karain Cave from the Paleolithic age, where the first people lived, near Termessos National Park
Free Images: "bestof:Gfp-tennessee-cavern-of-ruby-falls.jpg Photos of Lookoutmountain and Ruby Falls the largest in-cavern waterfall in the United States The room of a cavern"
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