By 1990 the tower was leaning 4.5m from the upright and nearing its limits. A huge rescue operation was then launched, which involved wrapping steel bands around the lowest section of the tower, placing 900 tonnes of lead ingots at its base to counterbalance the leaning stonework, removing water and silt from beneath the tower’s foundations, and finally reinforcing the foundations and walls with steel bars. Eleven years and many millions of euros later, the tower was officially reopened to the public in November 2001.
The ascent to the bell chamber takes you up a narrow spiral staircase of 294 steps, at a fairly disorientating five-degree angle. It’s not for the claustrophobic or those afraid of heights, but you might think the steep admission fee is worth it for the privilege of getting inside one of the world’s most famous and uncanny buildings.