This is a reasonable enough question. Imagine that you are looking at the object and behind you, you have a very large mass of clear, but very high index of refraction material (with index of refraction $n$). Then you could easily say "I wonder how this looked 100 years ago", and then very quickly run behind your large block of material at some speed $c/n < v < c$, and look through the material at the object you are viewing. You would see it at a time prior to what you originally saw it at, and this doesn't violate special relativity or anything. You should make sure not to stand directly behind where you were, because then you would be blocking your own view.