The Star Trek Voyager - Eliter Force: Graphic Overhaul Project(GOP)is a mod, that basically recreates the Voyager with high definition textures and a new OpenGL renderer.
Note that the orininal game quality was actually much lower than shown here on modern systems. For the comparison shots i have not used the new openGL renderer or the HD texture pack, but the config file was still the optmized one, which f.exp. boosts the geometry level.
Amazing! The Turbolift's were probably one of the worst looking places in the game so it's great to see it more accurate :)