Yes, that’s one of the most well known sights in Lucca, the Guinigi Tower. If you’ve already visited Lucca there’s a good chance that you’ve been up in the tower. The views of the city and the surrounding are are amazing, or so I’m told. I didn’t quite make it to the top. I did go into the tower and climbed a fair amount of steps, and although I didn’t see the view from the top (due to fear of heights) I did see these wonderful framed pieces covering the wall on the way up.
I found them quite fascinating as they appear to depict a bit of the history of Lucca. As you can see, there’s a fair amount of defending the city and a bit of warfare and head chopping that I’m happy to have missed.