On the other hand, there is a very high pixel count (2000x1951 pixels) black & white version available at:
And there are some extreme closeups of certain parts of the painting, as well, including a 1.2 megabyte image of the skull.
In searching for these images I also ran across a fascinating page that speculates on the hidden symbolism of the terrestrial and celestial globes in the painting.
Like ancient Rome, we today are once more importing every form of exotic superstition in the hope of finding the right remedy for our sickness.
-- C. G. Jung
Richard Wilhelm: In Memoriam (1930), CW 15: pg. 60