True, it is not known for certain who the original architect was and we’ll probably never know for sure, given that so many centuries have passed.
Antonio, I hope you’ll post a report after you’ve visited the leaning tower of Pisa. You’re going at the right time. Years ago, visitors were not allowed to go inside the tower, but nowadays, it’s open and you can climb the stairs to the top. Good exercise too!
I’ve never been in it myself, but it’s said to be beautiful inside. The stairs seem pretty interesting, they look literally worn by footsteps. I got curious and went to my friend google… it appears that over one million people visit the tower each year. Can you imagine?
The nice thing about visiting there is that you don’t have to go all the way there just to visit the tower. Nearly is also the Baptistery of San Giovanni.
The city of Pisa is a medieval city that can easily be reached from Rome by train, another plus. You can easily spend a whole day there and look at all the historic buildings without getting bored. I just don’t know how touristic the area is but I’m sure it’s safe to say that you won’t be alone there.