natural travertine dam on lake in afghanistan's band-e amir national park

afghanistan band-e amir national park amir national natural travertine dam landscape travertine view band-e-amir panorama lake desert desert unesco bamiyan world heritage site world heritage hindu kush mountains canyon mountainous area system travertine bamyan system carbon dioxide travertine wall tourism tourist tourist place nature landscape treeless mineralized water blue sky asia asiatic central asia balkh river balkh mineral deep hindu kush mountains reed plant