ikar01
odd things in the pictures, launching aircraft from the top of the turret
That was common on the "standard" battleships of the inter-war USN.
Turret tops were resistant to many things, and very rigid. Those early catapaults were driven with black powder charges--so magazine access was handy. Being near the boat cranes was also handy as well.
The aviators also appreciated the ehight above water to get to flying speeds (early catapaults were a "just barely" fight speed proposition).
ikar01
and the square shape high up looks like it is not sitting right.
May need to include a picture, Arizona--like the rest of the Standard BB had all manner of box shapes "up high." The "fighting tops were boxy and aligned for less-obvious reasons. Often there were platforms, former AA platforms on the tops of boat cranes.
So, your description could be of many "bits" on the kit let alone the ship.
And, rest assured, if you get the Pontos detail set, you'd be expected to fold every face of them, with 12 parts when 4 might suffices.