I noticed this glitch too. In the PS2 version, (Early EARLY copies only), you can go stand at the door of the girls dorm, and zoom your camera in and out. Windows and other random things will appear.
This is an issue when developers delete content from the renderware engine, some things dont fully remove. This is an apparent issue in GTA 3, VC and SA, and also happens in Bully.
In GTA 3, the most notable example is that some random buildings will pop up if you zoom into Staunton Island. Same with Vice City, random buildings appear in the skyline that dont appear at all in game. SA has this issue too.
It seems to be fixed in Later copies of Bully PS2, but it seems to have resurfaced on SE.