What does a city’s rooftops reveal about it?

I was flying over Lyon last week—low pass, just above the roofline—and something struck me. The way the tiles leaned, the gaps between them, the way some were cracked or covered in moss… it wasn’t just architecture. It was weather, time, neglect, repair. I started noticing rooftops everywhere since: how they speak of wind direction, of who can afford upkeep, of what the city forgot. What do you notice when you look up? Not the skyline, but the roofs.