-

645
Trullo buildings in Alberobello, Apulia, Italy
-

644
Winterlude begins
-

643
Spine-cheeked anemonefish
-

640
Great white egret, Hungary
-

639
Maritime forest in Cumberland Island National Seashore, Georgia, United States
-

638
Temple of Philae, Aswan, Egypt
-

638
Moon Day
-

637
Asteroid Day
-

634
Northern gannets, Shetland Islands, Scotland
-

634
Eurasian red squirrel
-

634
World Sea Turtle Day
-

633
Shark Awareness Day
-

632
A female Eurasian red squirrel, Switzerland
-

631
International Day of the Tropics
-

631
Avalanche Lake Trail at Adirondack High Peaks, New York, United States
-

626
Coral Reef Awareness Week
-

624
Ring-tailed lemur
-

620
Aerial view of Plaza Mayor, Madrid, Spain
-

620
World Rainforest Day
-

618
International Day for the Conservation of the Mangrove Ecosystem
-

618
Tide pools in La Jolla, California, United States
-

616
Whooper swans, Kotoku Pond, Japan
-

615
A pine forest in Alsace, France
-

614
Scotts Bluff National Monument, Gering, Nebraska, United States
-

614
Reindeer, Lapland, Finland
-

613
Keel-billed toucan, Costa Rica
-

612
Wheatear, Peak District National Park, England
-

611
International Day of Friendship
-

609
Independence Day of the Argentine Republic
-

603
World Lake Day