Found a new one (for me). I switched things up and tuned into an old, trusty friend named the Club Dubstep channel via di.fm. Found a dubstep remix of this and liked it, but I listened to the original as well, and I think you know the rest (see winner below).
Hybrid - "Disappear Here"
As an aside, the video is shot in an abandoned building, which obviously sets the atmosphere to this dark, soft-but-edgy piece.
Not related, but there's a guy on YouTube who uses drones to shoot footage of abandoned places. I'm putting that here because I can.