1. A map display apparatus comprising: an image display device; map storage means for storing map data to display maps; and map drawing means for preparing drawing data of a map using said map data read out from said map storage means and displaying an image of the map on said image display device on the basis of the drawing data, wherein said map drawing means includes coordinate transforming means for transforming coordinate data contained in the map data, and said coordinate transforming means includes perspective projection means for perspectively projecting the coordinate data contained in the map data onto a predetermined projection plane with a view point at a desired position to thereby prepare the drawing data of a bird's-eye view.