Consider the pizza di Pasqua (dough with liquor, chocolate, cheese, +20cm tall), pizza alla pala (1.5m long), pizza sbattuta (sponge cake), pizza in teglia (rectangular and cut in square slices), and many more.
Could be related to pita, and I would not argue every culture on earth made flat round dough and put stuff on it, but it's a very large family.
https://en.m.wikipedia.org/wiki/Pizza_di_Pasqua
https://www.tasteatlas.com/pizza-alla-pala
https://blog.giallozafferano.it/inventaricette/pizza-sbattut...