1. A method comprising: tracking play histories of a plurality of users, each play history identifying media items played by a corresponding one of the plurality of users and locations at which at least a subset of the media items were played by the corresponding one of the plurality of users; enabling a user to define one or more geographic areas; processing the play histories of at least a subset of the plurality of users to identify one or more media items played within the one or more geographic areas; and providing data that reflects the one or more media items played within the one or more geographic areas to a device of the user.