![](http://www.alamy.com/thumbs/6/1F4E867B-82B5-4D13-9220-0547B7DA33D9/2C6X17W.jpg)
Bolii cave near Petrosani city, Romania
Size: 5298px × 3532px
Location: Petrosani, Romania
Photo credit: © Ciobaniuc Adrian Eugen / Alamy / Afripics
License: Royalty Free
Model Released: No
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