okay this is extremely weird; Twitter just forced me onto the unusuable "home" timeline (instead of the "latest tweets" one) and made the little star icon at the top disappearpic.twitter.com/x7l2w1iMa8
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more