First one is just an antenna, and the second one appears to be a vent. There were horns by it in older streetview.planeguy2 wrote: ↑Mon Mar 23, 2020 2:17 pmhttps://goo.gl/maps/iNLf5QJ2ttXbyQuy7
I think these are just some PA speakers.
https://goo.gl/maps/X9pit8Hec7RiyXCL9
I have no idea.