I've seen a lot of impressive game-engine footage over the years, but nothing quite like the Unreal Engine 4 demo put together by level designer and "CG generalist" Benoit Dereau. Dubbed Unreal Paris, this four-minute clip looks like it was shot inside a real-life apartment. One might call it astonishingly beautiful—or something. See for yourself:
Too bad the video isn't from an actual game. I'd play Real Estate Simulator if it looked like that.
If you want to tour the apartment yourself, a downloadable build is supposed to be available on Dereau's site, though the link appears to be broken right now. Thanks to The Verge for the tip.