Žiar nad Hronom, Slovakia
Natural monument. This rare geological phenomenon shows imperfect fluidity of rhyolite lavas. Accessible by road 2498.
This 3-km-wide and 43-m-high "mountain" used to be a large red landfill, created by leftovers from the processing of bauxite. It has been largely revitalized into a quite inconspicuous green hill.
