How Do They Do It?
Season 16 Episode 14 of 20
A look at how the tallest buildings in the world are cleaned. Plus, the process to make a jigsaw where every piece is unique
How Do They Do It? airs on Discovery Channel +1 at 5:30 PM, Tuesday 23 June. (Subtitles.)
Topics
Education ➝ Science ➝ Factual Topics
General