I tend to consider these bones only at the dinner table, when they’re stuck in my teeth, but the masons who centuries ago built the civilization on Korcula thought about them. The Croatian island is at the constant mercy of the elements, so the masons embraced their low-lying attachment to the Adriatic Sea and designed their stone streets like fish bones. The main street runs straight from north to south like a wide backbone that supports the shops and cathedral. But the east and west streets are staggered so that they don’t line up on either side of the main street, and the eastern streets also curve. In winter, when chilling winds blow from the east, the strongest gusts are stopped like criminals in blind corners. In summer, when gentle breezes arrive from the west, they run clear to the main street and provide natural air conditioning in the town square.