Oftentimes, advanced microscopy studies which measure the local performance of energy materials, are restricted to probing the surface. Yet, it is recognized that critical operational processes occur within these devices. In Nature Communications 11:3308 (2020), researchers dig deeper, by implementing tomographic atomic force microscopy to study local electrical transport pathways in a thin-film halide perovskite. From this yields a 3D, nanoscale spatial resolution map of the photoactive area, demonstrating how visualizing material interiors expands our understanding of next-generation energy devices.