The culture of Iran is one the oldest in the world. That's why it shouldn't surprise that there is broad heritage left in architecture, painting, pottery, weaving, calligraphy, metalworking and stonemasonry. The thing that connects those two cultures is making beautiful rugs with thousands of patterns.
But wait, there's more! If you thought that you don't know anything about Iranian culture, play this song and think again :)
The Afghani culture has been around for over two millennia so maybe it isn't strange that the oldest oil painting in the whole world was found just there. Still, the art of making music has stayed most practiced and beloved part of their culture. The Afghanis have many types of instruments but still enjoy their dances.