I would like to combine 2 graphics with different plotranges, but the plotranges for each graphic shoudnt change.
As an example:
Show[{
Graphics[{Yellow, Rectangle[{-1, -1}, {1, 1}]},
PlotRange -> {{-1, 1}, {-1, 1}}],
Graphics[{Thick, Circle[{0, 0}, 0.9]}, PlotRange -> {{0, 1}, {0, 1}}]
}]
What I need is this: 
What I get is this: 
I didnt found a simple solution for this. It would be great if someone could help me :)