I don't know about how your kindergarten school looked like.  But mine was pretty normal looking.  It was a brick building with white trim.  It looked like somebody's house but larger.  I could not find a photo of it.   
I came across these cute lower school buildings in Dezeen Magazine.  I just fell in love with these schools' architecture when I saw them.   They are works of art in themselves.  How lucky are these kids?  Maybe the children don't appreciate the architecture design per se, but they do, I'm sure, enjoy the beautiful light that has been planned for them, and the play areas, and the cool interiors.  Let's take a tour of some of  them:

This kindergarten is in Japan. Those pyramids at the top have windows letting in beautiful ever changing light depending on the time of day and season.

This school is in Colombia.  These modular buildings surround a common playground area in order to maximize ventilation and daylight.  This school is in an underprivileged area, and so their hope with this beautiful architecture is that it would fill the people in the area with pride and ownership.  Done! I'm proud just looking at it.

This was built in three days!  In the 80s!  It looks so contemporary.  Those colored blocks are blinds- the kids can move them around. They can open and shut them.  Because of the lack of play equipment the architects designed the building as a toy itself.

You can read more about these schools here.