Crackdown 3 is going to be a huge title for the Xbox One, and it has one hell of a gimmick to boot. In multiplayer, the game has a "100% destructable" world. This means that if you see a building you want to bring down, you can. It's seriously impressive tech.
To see it in action and get an idea of how it works, take a look at this video from MyGamingBoulevard (via VG247). It shows developer Dave Jones giving a presentation at Gamescom about how the tech works and how the Xbox One uses the 'cloud' to process the damage in real time. It is impressive to watch, both from a technical, as well as 'explosion are cool' point of view.
Take a look: