19 days / 17 nights, Oct. 10-28, 2013 & April 17-May 5, 2014. Highlights: Peacock Throne, Crown Jewels in Tehran / copper-gilded, mirror-tiled tomb of Imam Reza in Mashhad / ruins of Persepolis, Pasargad / Kerman Bazaar / in Isfahan, Royal Square, Friday Mosque / Ramsar on the Caspian Sea. Land and internal air, $5,380. Single supp., $1,310. Distant Horizons (Long Beach, CA; 800 / 333-1240).