The demands of modern logistics, the urgent need for decarbonization, and the demand for equitable access are challenging the 20th-century infrastructure. Cities can no longer afford to wait five years for a plan to be approved. They need to test, learn, and adapt. For centuries, a city map was a static thing—ink on parchment, lines on a screen, a fixed set of rules. But to rise up to the challenge, the maps of Europe need to come to life. They should no longer be just about