![](http://www.alamy.com/thumbs/6/4EA6FC83-858B-4578-89CD-11965F30D0ED/2C6X181.jpg)
Bolii cave near Petrosani city, Romania
Size: 4817px × 3212px
Location: Petrosani, Romania
Photo credit: © Ciobaniuc Adrian Eugen / Alamy / Afripics
License: Royalty Free
Model Released: No
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