The Cerebro/Cerebra is a device used to locate mutants in the X-Men world. Its Unreal Engine 4 version probably does that, too, plus it looks amazing. A GIF really doesn't do it justice.
The environment was built and shared on the Polycount forums by Cameron Mitchell, AKA MoebiusCammy, a fourth-year animation student. The project took him five months, and resulted in probably the best-looking done-in-a-game-engine hallway I've ever seen:
I mean damn. Make sure to watch the video to see that awesomely-animated door:
And here's the rest of the screenshots: