Erm, i don't know if this would be something you like.
The pendragon series has a couple of books like that, the series is about a boy who travels to different dimensions, trying to change key events that happen at exact times to reverse their destruction.
I believe one of the books is about a world that is completely controlled by a company and the most famous people are the gladiators who fight for their lives on a platform that hangs hundreds of feet in the air.

Sorry if this wasn't a good option for you, my tastes are kind of the opposite. I like dark age based books full of blades, magic, and romance.