Santa Laura Saltpeter Works, UNESCO World Heritage Site, Atacama Desert, northern Chile, Chile, South America

abandoned aged air america american american atacama attraction attractions chile chilean closed crystal crystals day daylight daytime desert deserted desolate disused during erstwhile exhibit exhibition exhibits former formerly forsaken furnace furnaces heritage historic historical historically history in industrial industry inoperative kiln kilns latin laura lettering living mine mineral minerals mines mining monument monuments museum museums nitre nobody northern of old once one one time open open air out out of service out of use oven ovens past piece pieces rust rusted rusty salpeter salpetre salt saltpeter santa seeing service show showpiece showpieces sight sights sign site site sites sites south south stone stones the through time times tourist unesco uninhabited unoccupied use vacant works world worth writing writings