This post from Brainpickings displays some of Julian Germain’s photos of classrooms around the world.
Here’s one from Argentina:
There are so many stories in these photos, in the faces of the students, in the way each classroom looks. Some of the classrooms are overcrowded and short on materials; each has its own atmosphere. A question that comes up in one photo after another is: What conditions are best for learning?
Bright Across the Lifespan 