The subterranean level in a (vertical) watermill where water gushes out... (Wadi es Salib) January 26, 2018 by mountainsoflebanon The subterranean level in a (vertical) watermill where water gushes out after it drops vertically from a special stone conduit... in the middle of the “basement” arch is the metallic rotor connected to a vertical axis... #watermill #watermills #abandonedplaces #stonearchitecture #hydrolicsystem #vernacular #waterpower #lebanon #wadisalib #stonearch #طاحونة #طواحين by mountainsoflebanon / Instagram