Weeding the ancient walls in Xi'an

A sanitation worker climbs down by a rope to clear the weeds off the ancient walls of Xi'an, the capital city of northwest China's Shaanxi province, June 16, 2017. The weeding work must be done by hand as herbicides don't work well and it would take two people 5-6 days a month to complete. [Photo: hsw.cn]

A sanitation worker climbs down by a rope to clear the weeds off the ancient walls of Xi'an, the capital city of northwest China's Shaanxi province, June 16, 2017. [Photo: hsw.cn]

A sanitation worker clears weeds by hand off the ancient walls in Xi'an, the capital city of northwest China's Shaanxi province, June 16, 2017. [Photo: hsw.cn]

A sanitation worker shows his hands after clearing weeds from the ancient walls of Xi'an, capital city of northwest China's Shaanxi province, June 16, 2017. [Photo: hsw.cn]

The tools used by workers to clear the weeds off the ancient walls of Xi'an, capital city of northwest China's Shaanxi province, June 16, 2017. [Photo: hsw.cn]

A sanitation worker climbs down by a rope to clear the weeds off the ancient walls of Xi'an, the capital city of northwest China's Shaanxi province, June 16, 2017. [Photo: hsw.cn]