It's in one of them thar fancy shoppin' malls. Now, don't get all that excited about it, because when you go to the website for the exhibit, you notice if you watch the non-shareable videos on the site, people are wearing 3D glasses. So, really, what this is, is nothing more than a really immersive 3D movie, and not actually anything approaching real holograms.
Well, on the video, you can see people freaking out when a holographic killer whale smashes the wall of its tank.