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Construction Technology - Restoring the Leaning Tower of Pisa
(www.youtube.com)
This is a most excellent place for technology news and articles.
Fascinating... TIL the tower was built in three phases and each phase has it's own tilt due to being corrected for plumb as it went along.
It's not leaning, it's curved, which means it's another opportunity to talk about Peyroni's Disease. :)
https://www.mayoclinic.org/diseases-conditions/peyronies-disease/symptoms-causes/syc-20353468
It absolutely wasn't an opportunity but I respect it none the less.