Parking can seem like the most humdrum concern in the world. Even planners, who thrill to things like zoning and floor-area ratios, find it unglamorous. But parking influences the way cities look, and how people travel around them, more powerfully than almost anything else. Many cities try to make themselves more appealing by building cycle paths and tram lines or by erecting swaggering buildings by famous architects. If they do not also change their parking policies, such efforts amount to little more than window-dressing. There is a one-word answer to why the streets of Los Angeles look so different from those of London, and why neither city resembles Tokyo: parking. ... For as long as there have been cars, there has been a need to store them when they are not moving—which, these days, is about 95% of the time. Washington, DC, had a parking garage in 1907, before Ford produced its first Model T. But the most important innovation came in 1923, when Columbus, in Ohio, began to insist that builders of flats create parking spaces for the people who would live in them. “Parking minimums”, as these are known, gradually spread across America. Now, as the number of cars on the world’s roads continues to grow (see chart), they are spreading around the world. ... Free parking represents a subsidy for older people that is paid disproportionately by the young and a subsidy for the wealthy that is paid by the poor.