Workers of China Railway 20th Bureau Group Corporation perform maintenance work for the Benguela Railway in Lobito, Angola, Aug. 2, 2019. The Rovos Rail luxurious train started its return trip here on Friday, with its Dar es Salaam-Lobito tour marking the first complete railway connection between the east and west coasts on the African continent. As a part of the whole line, the 1,344-km Benguela Railway in Angola was constructed by the China Railway 20th Bureau Group Corporation. (Photo by Liu Zhi/Xinhua)