832-387613 - Puente del Inca, rock arch and old thermal bath of the sulphur spring above the Rio de las Cuevas, near Uspallata, Mendoza Province, Argentina, South America
832-380804 - Two tourists standing beside steaming fumarole, solfatara in Hverarond, also Hverir or Namaskard, geothermal area, North Iceland, Iceland, Europe
832-124032 - Sulfur vapor, petrified trees in New Blue Spring Road, limestone sinter terraces, steaming geysers, hot springs, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America
857-66739 - A village named Muftaffabad Loni on the outskirts of New Delhi, India that specializes in recycling circuit boards from electronics. The boards are taken out of electronics in other areas of New Delhi. Some of the boards are burned, some are dipped in sulfuric acid to get the metals separated from the plastics.