At Caltech, they’ve published a video simulation of the Milky Way:
Animation of our Milky Way galaxy based on a detailed supercomputer simulation. The movie zooms in and out of the galaxy, showing what it would look like in visible wavelengths. Blue regions are young star clusters which have blown away the gas and dust out of which they formed. Red regions are obscured by large amounts of dust.
Credit: Hopkins Research Group/Caltech