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Hot air balloons fly over the Metropolitan Park in Leon City, Guanajuato State, Mexico, during the International Balloon Festival on November 15, 2013. About 200 balloonists from 16 different countries take part in the festival. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524692848 )

Balloons take off during the Hot Air Balloon Festival in Leon, Mexico, Friday, Nov. 15, 2013. More than 200 balloons from different countries participated in this year's festival. (AP Photo/Mario Armas) ( Mexico Balloon Festival )

Hot air balloons stand by to fly during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. Around 200 balloonists from 16 different countries take part in the festival. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693170 )

Balloons take off over the Palote dam during the Hot Air Balloon Festival in Leon, Mexico, Friday, Nov. 15, 2013. (AP Photo/ Mario Armas) ( Mexico Balloon Festival )

Hot air balloon stands by to fly during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693147 )

Balloons take off over the Palote dam during the Hot Air Balloon Festival in Leon, Mexico, Friday, Nov. 15, 2013. (AP Photo/Mario Armas) ( Mexico Balloon Festival )

Shadows of people are cast on the side of a hot air balloon being filled at the Hot Air Balloon Festival in Leon, Mexico, Friday, Nov. 15, 2013. (AP Photo/Mario Armas) ( APTOPIX Mexico Balloon Festival )

Hot air balloons fly over the Metropolitan Park in Leon City, Guanajuato State, Mexico, during the International Balloon Festival on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524692788 )

Hot air balloons fly over the Metropolitan Park in Leon City, Guanajuato State, Mexico, during the International Balloon Festival on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524692824 )

Hot air balloons fly over the Metropolitan Park in Leon City, Guanajuato State, Mexico, during the International Balloon Festival on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693227 )

Hot air balloons fly over the Metropolitan Park in Leon City, Guanajuato State, Mexico, during the International Balloon Festival on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524692845 )

Hot air balloons fly over a lake during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693117 )

A hot air balloon overflies a lake during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693186 )

Hot air balloons fly during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. Around 200 baloonists from 16 different countries take part in the festival. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693156 )

Hot air balloons fly over a lake during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. Around 200 baloonists from 16 different countries take part in the festival. /AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524701326 )

A man jumps on parachute from one of the hot air balloons flying during the International Balloon Festival at the Metropolitan Park in Leon, Guanajuato state, Mexico on November 15, 2013. Around 200 balloonists from 16 different countries take part in the festival. AFP PHOTO/Hector GUERRERO/AFP/Getty Images ( 524693192 )