Color is everywhere, and when it's everywhere at once, it can be as ephemeral as a rainbow, as sudden as colored powder raining down at a festival, or as necessary as a natural defense. No matter where you look, life is in color. Here, a woman prays at the 18th-century Vakil Mosque in Shiraz, Iran. Islam is the official religion of Iran, practiced by about 98 percent of the population. Green lights illuminate multicolored shipping containers at the Port of Singapore Authority. Located at the tip of the Malay Peninsula in Southeast Asia, the port is one of the busiest container hubs in the world. Colorful lights flash on a popular amusement park ride.