Leaning Tower of Pisa

The Leaning Tower of Pisa is the most typical Italian campanile, whose origin many scholars associate with Islamic building influences.

An excerpt from the article 20 facts about Leaning Tower of Pisa
Just as the muezzins from the tops of minarets call the faithful to prayer, the sound of bells from the top of the tower calls Christians to their temples. Other historians claim that it was the adapted towers of Christian churches in Syria that were the first minarets.