The geological hotspots of the Earth are depicted on a floating ball in the visitor center at Yellowstone National Park.
Spherical fountain in the visitor center
Yellowstone National Park, USA, 2006
When it comes to fountain systems, Gert Fraunberger is your man. He will be able to give a quick answer to virtually any questions you might have on the subject of water and stone. The best idea is to get in touch with him right away.