We see from excavation sites (such as at the ancient capital, Persepolis), that Persians were exceptionally gifted rock carvers and were capable of ornate relief designs.
In order to publicize his statements, he commissioned many engravings on rocks and pillars that provided information on his thoughts and actions during his reign.
What became known as the face on Mars appears to have been either carved into the rocky surface or built on top of it but what it is exactly is still under debate.
Yet these lakeful rivers are still more excitingly beautiful and impressive in their natural positions to those who have the eyes to see them as they lie imbedded in their meadows and forests and glacier-sculptured rocks.