There was a show on discovery (i think) a couple years ago about this. They were building it, at the time the accererator didn't have enough track.
Wonder where the atoms go?
I have theories about time travel myself.
What if time wasn't a definate unit of measurement, but was held together like matter, a series of events that all came together, like atoms. It would look like this;
..............................
Seeming like a straight line made of of events, but actually they aren't bonded together?
I try to live between the dots in my own time. Unless I'm at work, then I wait til it's time to leave!