The U.S. Postal Service celebrates the colorful sights of autumnal walks with the release of five new Vibrant Leaves postcard stamps. Each stamp showcases a single leaf from the aspen, sassafras, oak, ...

Each stamp showcases a single leaf from the aspen ... "I am enchanted by the colors one finds in leaves, especially during the autumn season," Alcala said. "I wanted to present a gradation ...