One of the two famous towers of Bologna, Garisenda, was built almost a century later than the Asinelli Tower. Garisenda was once even taller than Asinelli. But years after its construction, the ground began to sink under it, and the roll became quite noticeable – almost 3 meters. Therefore, the authorities were forced to "shorten" it by almost half – and they were forced to do it three times. But even today this tower is unsafe, the entrance to it is closed and it continues to be strengthened!