Tallest school (NOT college or univ.) building in US?

[llamaorama]

As the title suggests, where/what is the tallest school building in the United States? Specifically where the building was purpose built for education purposes and the school takes up most of or almost the ENTIRE building. I want people to post examples that show how a vertical school building is a viable concept, because its easy to think of reasons why it wouldn't. I think this will be a fun thread if it doesn't go off topic.

Do NOT post mixed use developments where a school only exists as part of a ground floor podium of a bigger tower, or a non-conventional private montessori or something like that which only occupies one floor of a tower. That doesn't really go with what I am looking for/discuss.

Please do NOT post buildings which are or part of university or college campuses or any vocational schools that serve Adults. Only schools which serve kids/teens/youth. There are already ample resources on the internet for high rise university buildings including a list on wikipedia.