Terraced fields of green

© Michele Falzone/Alamy

Twice a year, all of Bali, Indonesia—including those who live and work in the lush, green rice terraces you see here—join together to celebrate the country"s most important holiday, Galungan. This 10-day Balinese-Hindu milestone always comes at the end of the traditional 210-day Balinese calendar, usually in March or April, and then again in September or October.