An example is the Alexander Mosaic , showing the confrontation of the young conqueror and the Grand King Darius III at the Battle of Issus , a mosaic from a floor in the House of the Faun at Pompeii ( now in Naples ) .
An example is the Alexander Mosaic , showing the confrontation of the young conqueror and the Grand King Darius III at the Battle of Issus , a mosaic which adorns the walls of the House of the Faun at Pompeii .