Çatalhöyük

You climb in through the ceiling. That is the door — a hole in the roof, a ladder, the smell of smoke and grain and something animal below. There are no streets in Çatalhöyük. No alleys, no front steps, no way to walk from one house to the next except across the tops of them all. The whole city is a single packed mass of mud-brick rooms, shared walls on every side, and the only way in or out is up. A child born here grows up walking on her neighbours' roofs as casually as a floor. When a house dies — when the walls crack and the plaster crumbles — the family doesn't move. They bury their dead beneath the sleeping platform, pack the rubble flat, and build the new house directly on top of the old one. The same family. The same spot. Generation on generation, the city slowly rising out of its own remains. We found them when we cut into the mound: eighteen layers of houses, each one pressing down on the last, the dead underneath the living, the living standing on the dead. Nobody knows why they built this way. Nobody knows what they called themselves. But they did it, together, for two thousand years — which means whatever they had, it worked.