![](http://www.alamy.com/thumbs/6/CAC9948B-E76E-4FE1-9374-0BB6BD1821A2/BYAJDY.jpg)
Petnicka Pecina Cave Petnica Underground Cave ceiling
Size: 5616px × 3744px
Photo credit: © Serbia Pictures: Adam Radosavljevic / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: abstract, ancient, archeology, cave, concept, confusion, dark, entrance, exit, formation, geology, grotto, hell, history, hole, labyrinth, light, lost, maze, mining, mystery, natural, nature, needle, paleontology, pecina, petnica, petnicka, pećina, phenomenon, pin, place, prehistoric, rock, rough, serbia, sharp, space, stalactite, stalagmite, stone, tube, tunnel, underground, valjevo