Some 14,000 orange trees decorate the streets of Seville. The bitter oranges aren’t very good for eating, but because of their high content of pectin, they do make great orange marmalade. More important, orange trees provide shade from the fierce Andalusian sun, and in the springtime, when they bloom, the heady perfume of orange blossoms fills the air. Photo ©Mike Randolph. Buy a limited edition print of this image.