+The year 1173 marked the genesis of enduring marvels, as construction began on the famed [Leaning Tower](/wiki/Leaning_Tower) in [Pisa](/wiki/Pisa). This period also witnessed significant political shifts across Europe.
+## See also
+- [12th Century](/wiki/12th_Century)
+- [Architecture](/wiki/Architecture)
+- [Italy](/wiki/Italy)
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