When I’m cleanin’ windows

“Now I go window cleanin’, to earn an honest bob…”

So sang the famous British banjolele player George Formby. But the snooping character in his song probably would’ve balked at this job – cleaning some of the 142,000 sq m of glass on the tallest building in the world, the Burj Khalifa (818m high).

Click on the thumbnail below to view how the professionals do it…