It's like a normal school. Drab classrooms with blackboards, hallways with lockers — and a danger room. Maybe even a hidden hangar.
This is Superhero School, where young superhumans go to learn about their powers. A subtrope of Extranormal Institute, where it's often not the place that's unusual, but the students. And sometimes the faculty.
Often inverted by introducing a supervillain [...] [tvtropes.org]