National Pyrotechnic Festival in Tultepec, Mexico.
Iraqi Kurds carry torches up a rocky hill as they celebrate Nowruz in the Kurdish town of Akra, 500km north of Baghdad on March 20, 2009. Nowruz marks the first day of spring and the beginning of the year in Iranian calendar. It is celebrated on the day of the astronomical vernal equinox, which usually occurs on March 21. (SAFIN HAMED/AFP/Getty Images)