


How Do They Do It?
Season 15 Episode 5 of 20
A look at the gravity-defying 'magic' behind Pisa's leaning tower. Plus, the making of chocolate digestive biscuits
How Do They Do It? airs on Discovery History +1 at 11:00 PM, Wednesday 6 August. (Subtitles.)
Topics
Education ➝ Science ➝ Factual Topics
General