Why is every house a different, brilliant shade of magenta, turquoise, or deep orange? The most famous local legend says it was for the fishermen. During the winter months, a thick, milky fog often blankets the lagoon. It is said that the men of Burano painted their homes in these electric colors so they could recognize their own front door through the mist as they rowed home after a long day at sea. While that is a beautiful story, there is a more practical side today. Since the late twentieth century, the colors of Burano have been strictly regulated by the local government. If you live here and want to repaint your home, you cannot simply choose your favorite shade at the hardware store. You must send a formal request to the authorities, who will respond with a specific list of permitted colors for your particular property based on historical records. This Rules of the Rainbow system ensures the island never loses its iconic look. For a real treat, look for the Bepi Suà house, tucked away in an alley near the main square, which is famous for its geometric patterns and multi-colored facade that breaks all the traditional rules.