Goose/Goosepic.twitter.com/edOaCPkZYQ
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
You just drag two pics into the tweet. Or if you're on mobile, you can still add a second one after you've added a first. might depend on how big the files are.
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