A maintenance worker mops steps at the Beijing Olympic Stadium, also known as the Bird’s Nest, in Beijing, Thursday. Final preparations are being World Athletics Championships
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A cleaner works on Centre Court ahead of play on day three at Wimbledon on Wednesday in London, England
A window cleaner works on a building in the financial district of Canary Wharf in London
A cleaner sweeps a grandstand at the Buddh International Circuit in Noida, India, ahead of the Indian Formula One Grand Prix
A man cleans a spare part at a shop in Colombo’s Panchikawatte Road on Wednesday. The area is frequented by the middle class and is known for shops that stock second-hand spare parts for Japanese and European cars.