![](http://www.alamy.com/thumbs/6/3FEF5857-2383-46D4-91EB-020397A8275B/B196MH.jpg)
Oak chestnut tree in Las Médulas, Spain. Las Medulas were the biggest mine in the Roman Empire.
Size: 3401px × 5120px
Photo credit: © Jose Pedro Fernandes / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, bierzo, biezo, cast, castile, chestnut, del, el, gold, heritage, hydraulic, las, leon, mankind, medulas, mina, mines, mining, montium, oak, open, opencast, ponferrada, region, roman, ruina, site, spain, spanish, tourism, travel, tree, unesco, villafranca, world