Let's see... Well, I visited my old pre-school building a long time ago... Didn't get to talk to anyone but seeing the building again and the outside of it where we used to go as a group to see the old house across the stream with the geese and ducks brought back warm memories that I wish I could relive.
I've visited my old elementary school once or twice. It felt so weird. Back in the hallways that I had always remembered being so vast, I felt like a giant. But talking to my kindergarten and 1st grade teachers was nice.
I only ever visited my old middle school once, to see my name engraved on a plaque for an award I won in graduating year for Creative Writing. But, only for that and never again. No overwhelmingly good memories ever came from that place, for me.
As for highschool, I haven't been back there since graduation but I still do talk to some of my old teachers via email. My old English Literature teacher has told me that he's convinced that our class was the last teachable one. -grin- He says that all classes that have come after us have been nearly impossible to impart any knowledge to and that they don't take their studies way seriously enough. He probably says that to all his graduated students. ;P But, something that disturbs me... He also says that, since my graduation, there's had to be police security in the building's hallways. That just makes me so sad and unsettled, because that was never the case when I was there...