Interesting dive into the technology, troubleshooting, and process behind stabilizing the Leaning Tower of Pisa.
In the 90’s, engineers discovered that the tower was extremely close to collapse, within just a few % of the structural limit. They spent a decade researching, experimenting, and developing a solution to permanently stabilize the tower, while also preserving it’s unique features.
Cables were just there in case the tower tipped over.
It was more a combination of temporary weights and freezing the ground.