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

abandoned aged air america american american architecture atacama attraction attractions building buildings chile chilean closed countryside day daylight daytime desert desert deserted deserts desolate disused during erstwhile exterior exteriors factory former formerly forsaken head heritage historic historical historically history humberstone in industrial industrial industry inoperative landscape landscapes latin mine 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 outdoor past photo photos pit plant plants rust rusted rusty salpeter salpetre saltpeter scenery scenic seeing service shaft shafthead shot shots sight sights site site sites sites south south the through time times tourist tower towers unesco uninhabited unoccupied use vacant view views winding works world worth