![](http://www.alamy.com/thumbs/6/69D5EAD0-1091-4957-AD07-1DBF95C94AE1/F3EX20.jpg)
2 boys with safety hats waiting for an underground tour of Big Pit National Coal Museum, Blaenavon, South Wales, UK
Size: 3264px × 4896px
Photo credit: © Steve Benbow / Alamy / Afripics
License: Licensed
Model Released: Yes
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