Workers renovate a historic building against the ongoing torrential rains in the Old City of Sanaa, Yemen, July 26, 2020. Yemen witnesses torrential rains in recent days which put historic sites at risk. (Photo by Mohammed Mohammed/Xinhua)

An architect participates in renovating historic buildings against the ongoing torrential rains in the Old City of Sanaa, Yemen, July 26, 2020. Yemen witnesses torrential rains in recent days which put historic sites at risk. (Photo by Mohammed Mohammed/Xinhua)

Architects inspect a historic building during a renovation campaign against the ongoing torrential rains in the Old City of Sanaa, Yemen, July 26, 2020. Yemen witnesses torrential rains in recent days which put historic sites at risk. (Photo by Mohammed Mohammed/Xinhua)