Industrial structures are not scenery to ignore but a readable system whose form reveals function: the shape of an insulator string tells you the voltage it carries, and the pattern of a transmission tower encodes the load it bears. Learning to read these visible clues turns an opaque built environment into something you can interpret on sight.
On electrical transmission lines, the number of disc insulators strung together is roughly proportional to the line's voltage, because each disc can withstand only so much potential before flashover. Counting the discs lets an observer estimate the voltage of a given line from the ground.
The systems that deliver power, water, and communication are physically visible almost everywhere, yet most people perceive them as invisible background because they lack the vocabulary to name the parts. The ignorance is cultural rather than a result of the structures being concealed.