Visconti Castle (Invorio)
Italy
The 186th tallest tower in the world
The Visconti Castle of Invorio was a mediaeval castle located in Invorio, Province of Novara, Piedmont, northern Italy. Only a tower today survives, surrounded by the traces of the ancient walls. Matteo I Visconti, Lord of Milan, was born there in 1250.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).