Determine the fractal dimension of the fractal generated as indicated below.
Input :=
Clear[level]
level[0]=Graphics[
Rectangle[{0,0},{1,1}],
AspectRatio->1,
Axes->True,
DisplayFunction->Identity];
level[1]=Graphics[{
Rectangle[{0,0},{1/3,1}],
Rectangle[{2/3,0},{1,1}],
Rectangle[{1/3,2/3},{2/3,1}],
Rectangle[{1/3,0},{2/3,1/3}]},
AspectRatio->1,
Axes->True,
DisplayFunction->Identity]
Show[GraphicsArray[{level[0],level[1]}],
DisplayFunction->$DisplayFunction]
Output = -Graphics-

Output = -GraphicsArray-