![](http://www.alamy.com/thumbs/6/02D0E663-6C1B-45CD-A647-C2813FDDDB90/B3PFKT.jpg)
Grindstone, Hypogeum Mill, Orvieto Underground, Orvieto, Umbria, Italy
Grindstone, Hypogeum Mill, Orvieto Underground, archaeology;cave;grindstone;horizontal;hypogeum mill;interior;millstone;Orvieto;Orvieto Underground;spelaeology
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Photo credit: © Enrico Caracciolo / Alamy / Afripics
License: Licensed
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Keywords: archaeologycavegrindstonehorizontalhypogeum, grindstone, hypogeum, mill, millinteriormillstoneorvietoorvieto, orvieto, underground, undergroundspelaeology