6. North Atlanta High, Atlanta, Georgia ($147 million)
Although the building price is just a fraction of some other schools on this list, North Atlanta High is still an unusually expensive school. Upon its opening in 2013, it became the most expensive public school in the state of Georgia. Standing 11 stories high and built partially over a lake, the building is luxurious in appearance, styling beautiful spiral staircases and an executive-looking lobby at the entrance. Approximately 1,400 students attend the school. The 56-acre property was once owned by IBM, who housed their offices in the now re-purposed building. Learn more about North Atlanta High here.