His lyrical poems, ghazals , are noted for their beauty and bring to fruition the love, mystical, and early Sufi themes that had long pervaded Persian poetry. Ferdowsi Mausoleum in Tus ,  IRAN http://en.wikipedia.org/wiki/Iran http://en.wikipedia.org/wiki/Ferdowsi  His poems even appear on the walls of the UN headquarters in New York . http://en.wikipedia.org/wiki/Saadi_%28poet%29