This really old fort in Alexandria

We got to see a famous old fort while in Alexandria. I don't actually know much about it but it originally had a lighthouse and it was a famous port for many centuries. Now all that is left of it is the fort. It was really cool, minus the fact that they had all the Muslim symbolisms in the building. That wasn't so cool to me. But here are a few pics of the fort. I'm sure it has a name but I have no idea what it is, sorry.