Growing up in the heart of Hoosier Hysteria, it was probably inevitable that I’d fall for basketball. What I didn’t expect was how deeply I’d get hooked on the places it was played. Long after the final buzzer, I’m still thinking about balconies, locker rooms, and oddly shaped floors. Recently, I’ve been digging through old Sanborn Maps to trace how high school gyms were first built, how they evolved, and what those changes say about the communities that packed them. Here’s a little more of what turned up.