score:2
As Tyler pointed out in his comment, we are not going to do your homework for you. I'm going to ask some questions. It is important that you answer them for yourself. Giving the answers to us is secondary.
What is the audience supposed to take from your project? (I'm assuming that there will be some sort of presentation.)
What should be mentioned, even if the audience probably won't remember the details?
What skills are you supposed to learn and show with your project?
Depending on your time for the preparation and for the presentation, you might not be able to cover all the bullet points, or you might add some more. If you have lots of time, you might ask a Jewish congregation in your neighbourhood if there are ghetto survivors still alive, but before you do that you should talk to your teachers.
TL;DR Warsaw. It was large, it shows deportation to and from ghettos, it fought.