SUNSET: An Afghan refugee stands on the rooftop of a house in Islamabad, Pakistan, waiting for the

SUNSET: An Afghan refugee stands on the rooftop of a house in Islamabad, Pakistan, waiting for the sun to set and break the fast on the first day of Ramadan, Islam's holy month of fasting. Ramadan, which officially began Friday, commemorates the time when God began to reveal the Koran to Mohammed about 1,400 years ago.