Hot air balloons dot the sky at the start of the 19th Philippine Hot Air Balloon festival Thursday, Feb. 12, 2015 at Clark Special Economic Zone, a former U.S. Air Force base in Pampanga province, north of Manila, Philippines. Now on its 19th year, the hot air balloon festival features a total of 32 hot air balloons participating from all over the world. (AP Photo/Bullit Marquez)
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