无遮挡H肉动漫在线观看You could call The Leaning Tower of Pisa an architectural fail, but whether you like it or not it has become a worldwide landmark. The tower started to tilt during the construction process, and although the builders attempted to fix the issue, it still sinks around 1mm a year. In the 1990s, heavyweights were added to one side of the structure in order to help save it. How much longer will it last?