In iOS 7, your device will track the locations you frequent most. You can see those locations in a map if you head into the Settings app. Open the app, go to Privacy, then Location Services, then scroll down to System Services, and then on the next page tap on Frequent Locations. Once there you can toggle off Frequent Locations to keep your phone from tracking you. Or you can tap on your history to see a neat map of the places you visit most.
Salvador Rodriguez/Los Angeles Times