A School House
Ever notice how many of the older schools have additions like rings of growth on a tree to make room for new kids.
This little model has three additions and a bike shed at the very end. This model was made as an example of many schools and not of any one in particular.
"A lot of kids in school are just kinda puzzled as to why they are there. If you can explain the "why" of things, then that makes a huge difference to people's motivation and they understand purpose." - Elon Musk
"This school is more fun than school!" -Little Joe