Photos: Iranian celebrate Chaharshanbe Suri (Wednesday fire feast)

 Iranians lit bonfires, set off fireworks and sent wish lanterns floating into the night sky Tuesday to celebrate the “Festival of Fire,” a nearly 4,000-year-old Persian tradition. The annual ritual dates back to at least 1700 B.C. and is linked to Zoroastrianism. It comes days before Nowruz, the Persian new year, which will be rung in on March 20.