The Wake County (N.C.) district has opened the largest and most expensive high school in its history. The Raleigh News & Observer says that the $75 million, 349,000-square-foot Rolesville High School dwarfs all prior construction projects in the district. It’s the first four-story high school in the county and the first designed from scratch to hold more than 2,200 students. School leaders tout Rolesville High as a state-of-the-art school, but critics question whether the cost is too high. Others worry whether the size of campus is conducive to learning.