![](http://www.alamy.com/thumbs/6/D474846F-36CC-4B12-8FC8-2096BD331DBB/J60N4D.jpg)
cave rock stone age stalactite caves stalactite stone cave cold darkness rock
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Photo credit: © christian-colista / Alamy / Afripics
License: Royalty Free
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Keywords: age, cave, caves, cold, crystal, crystals, dark, darkness, feuchthhle, feuchtraum, hhlenforschung, hhlengang, kistallhhle, marvel, moist, monument, natural, nature, rock, stalactite, stalakmit, stalakmiten, stalaktiten, stone, stones, tightly