RTR2K6M9
21 Mar. 2011
Teotihuacan, Mexico
A hot air balloon floats past people who are watching the sunrise at the Pyramid of the Sun of Teotihuacan outside Mexico City during a festival as part of the spring equinox March 20, 2011. Hundreds of Mexicans and tourists gather at Teotihuacan every year to welcome the spring equinox. REUTERS/Henry Romero(MEXICO - Tags: SOCIETY)
