Imagine cleaning the windows on the tallest building in the world! The Burj Khalifa in Dubai is the tallest building in the world and was deisgned with over 24.000 different panes of glass. The top height where the workers start is more that 2722 feet in the air and hovers high at 160 floors. The cleaning process takes approximately 3 months and then guess what… They start over again. The window cleaners bravely harness up and go over the edge to make drops to lower floors cleaning the upper ones in the process. Tools are secured by lanyards to protect them from falling to the earth below and causing serious damage. Check out this awesome video to learn more about the process.