How Long the Tower of Pisa Can Defy Gravity
http://youtu.be/H6SN74stjOo Credit:
CC BY 2.0 https://creativecommons.org/licenses/by/2.0/:
Bruges Market: Wolfgang Staudt - https://flic.kr/p/4SXPcq, https://commons.wikimedia.org/wiki/File:Bruges_Market_Square_and_Belfry.jpg
Belfry of Brugge: Wolfgang Staudt, https://ru.m.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B9%D0%BB:Belfry_of_Brugge.jpg
CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0/:
Suurhusen Church: Peter Rohleder - https://flic.kr/p/atLwZ, https://commons.wikimedia.org/wiki/File:Suurhusen_Church,_East_Frisia,_Germany._Pic_02.jpg
Big Ben: DS Pugh, https://commons.wikimedia.org/wiki/File:Big_Ben_2001-06-27.jpg
Torre di Pisa: kajikawa, CC BY 3.0 https://creativecommons.org/licenses/by/3.0/, https://commons.wikimedia.org/wiki/File:Torre_di_Pisa_-_panoramio_(18).jp...