1.TheLeaningTowerofPisaisinclinedduetothesoftsoillayerbeneathitsfoundation.2.Constructionofthetowerbeganin1174andwascompletedin1350,entirelybuiltfrommarble.3.Thetowerdevelopedatiltatthethirdlevelduringconstruction,whichwasattributedtotheinadequatedepthofthefoundationandtheinsufficientstrengthoftheverticalupperstructure.Asaresult,theconstructionwashalted.4.Ninety-fouryearslater,theprojectwasrestartedwithmeasurestakentopreventfurthertilting.5.Afterweatheringover600years,theLeaningTowerofPisaremainsstanding,itsdistinctivetiltmakingitgloballyrenowned.6.TheLeaningTowerofPisastandsonthePiazzadeiMiracoliinPisa,Italy,asanindependentbelltowerofthecathedral.ItwasdesignedbythefamousarchitectNinoPisanoinAugust1173andconstructionbeganthereafter.7.Fromitsfoundationtothetop,theLeaningTowerofPisareachesaheightof58.36meters.Itsboldcirculararchitecturaldesignshowcasesitsinnovation.Thefirsttiltoccurredin1174.8.TheLeaningTowerofPisawaslistedasaWorldHeritageSitebytheUNESCOWorldHeritageCommitteeatits11thsession.详情