The town is dying.
This used to be the elementary school. When there wasn't enough children to keep it open, they closed it up and let it rot.
The roof fell in and the nearest wall collapsed. Instead of tearing it down, they just bulldoze the debris back into the lot if it falls into the street.
The doors still swing. When they're open you can see stairways and storage closets and empty classrooms.
There are still people living in town, but with no children and no new families, it's crumbling as fast as the old school.