Europe Roads: Shapefile of vectors of roads (highways) in Europe. Again, the coordinate system is Clark 1866 ellipsoid, use the same proj4 as above.
Ancient and Modern Athens/Piraeus: Shapefile discussed in class of ancient Athens and Piraeus with walls compared with modern Athens and Piraeus. To reconstruct the files, start with these images. To open the .qgs file, be careful to edit the directory of the shapefiles to where these downloaded files are saved.