The Gallery Card allows you to represent collections of photos within a Tweet. This Card type is designed to let the user know that there's more than just a single image at the URL shared, but rather a gallery of related images. The Tweet below from @VisitCA shows a Gallery Card below the 140 characters: You can specify up to 4 different images to show in the gallery card via the twitter:image[0-3
![Gallery Card | Twitter Developers](https://cdn-ak-scissors.b.st-hatena.com/image/square/550cd17afe9d1d6e89a840b230496218e93c21f1/height=288;version=1;width=512/https%3A%2F%2Fdev.twitter.com%2Fsites%2Fdefault%2Ffiles%2Fimages_documentation%2Fscreen_shot_2014-06-19_at_11.56.06_pm.png)