In 2015, Oslo announced a plan to ban all cars from its city center by 2019. Now, the country of Norway wants to take the initiative a step further. According to Time, Norway is preparing a billthat, if passed, would ban the sale of gas-powered cars in the country by 2025. But cities in Norway are not the only ones getting ready to take the car-free plunge. Urban planners and policy makers around the world have started to brainstorm ways that cities can create more space for pedestrians and lower CO2 emissions from diesel. Here are 10 cities leading the car-free movement.