Dalmatian pelicans on ice, Lake Kerkini, Greece

'Invisible Man,' a memorial to Ralph Ellison in Riverside Park, New York City

Porto, Portugal

Clearing snowstorm, Yosemite National Park, California

Parrotfish off the coast of Negros Oriental province in the Philippines

Rocks in the Verzasca River near the hamlet of Lavertezzo in the Valle Verzasca of Switzerland

Perito Moreno Glacier in Patagonia's Los Glaciares National Park, Argentina

Flowers and an ironwork fence in front of a house in New Orleans, Louisiana

Lincoln Memorial in Washington, DC

Ocean waves crashing over a heart-shaped rock island off the coast of Sydney, Australia

Eastern bluebirds in Charlotte, North Carolina

Muskox with newborn in the central Arctic coastal plain of Alaska

Flowering almond trees in California's Central Valley

Nieve penitente ice formations seen on Agua Negra Pass in the Coquimbo Region of the Andes, Chile

Moon dog photographed at Hug Point Falls on the Oregon coast

John Lewis hero mural by Sean Schwab in the Sweet Auburn district of Atlanta, Georgia