Sheep graze along a road, Iceland

Mute swan chicks shelter under mom's tail feathers, Massapequa Preserve, Long Island, New York

Plitvice Lakes National Park, Croatia

Square Tower House in Mesa Verde National Park, Colorado

The blue eggs of an American robin in New Jersey

Aerial view of Grand Prismatic Spring, Yellowstone National Park, Wyoming

'L'Arc de Triomphe, Wrapped,' an art installation by Christo and Jeanne-Claude on September 24, 2021, in Paris, France

Horseshoe Bend, Arizona

Mitsumata (aka paperbush) in a forest in Japan

Waning gibbous moon above the Earth's horizon, photographed from the International Space Station

Fiddlehead fern fronds in Quebec, Canada

Caracal cubs

Arvada Skatepark, Arvada, Colorado

Coast near Ponta Delgada, Madeira, Portugal

Old town of Málaga, Spain

Crested caracara birds courting in Texas

Goðafoss waterfall under the northern lights, Iceland

The Kjeragbolten boulder on the mountain Kjerag in Rogaland county, Norway

Cherry blossoms at Lake Tai at Wuxi, China

Whangārei Falls near the city of Whangārei, North Island, New Zealand