More and more, we're seeing community-based sharing projects around the world. While Seoul, South Korea, is often spotlighted as a model "Sharing City," there are many others that have incredible sharing initiatives, including Berlin (Germany), Cape Town (South Africa), and Buenos Aires (Argentina). From tool libraries to car-sharing setups to projects linking dumpster divers with hungry vegetable lovers, these three cities have worked their way to the forefront of the global sharing ecosystem.