-

3955
Audubon Christmas Bird Count
-

3957
Tide pools in La Jolla, California
-

3962
Ancient til trees in Fanal Forest, Madeira, Portugal
-

3973
Gdańsk on the banks of the Motława, Poland
-

3982
Asteroid Day
-

3984
Anshun Bridge, Chengdu, China
-

3985
International Day for the Conservation of the Mangrove Ecosystem
-

3998
World Environment Day
-

4002
Cable car station, Graubünden, Switzerland
-

4002
World Oceans Day
-

4036
Three Musketeers Falls at Iguazú Falls, Argentina
-

4048
A great white egret in Hungary
-

4052
Camel thorn trees, Namib-Naukluft Park, Namibia
-

4056
National Moth Week
-

4058
National Lighthouse Day
-

4069
Spotted eagle rays in the Galápagos Islands
-

4075
Shark Awareness Day
-

4100
Iceland for International Rock Day
-

4102
A Eurasian red squirrel in Switzerland
-

4103
Thousand Islands region, St. Lawrence River, US-Canada border
-

4119
Perseid meteor shower over Nevada
-

4143
Colorful houses of Las Palmas de Gran Canaria, Spain
-

4148
World Lion Day
-

4148
Devils Tower National Monument, Wyoming
-

4151
Northern gannets, Shetland Islands, Scotland
-

4152
Old City of Dubrovnik in Dalmatia, Croatia
-

4160
Summer solstice
-

4164
Clark Range, Yosemite National Park, California
-

4175
Point Reyes National Seashore in California
-

4185
Little Pigeon River, Great Smoky Mountains, Tennessee