National Geographic Showed Their Most Popular Photos of 2015
These photos were most shared on social networks.
National Geographic published a selection of 20 photographs from those Photos of the Day, which were posted on the website of the magazine during the year.
"Each day, we bring you one photo that fits our criteria for Photo of the Day — sometimes classic, sometimes quirky, — the editors write. — For this year’s roundup, we looked at shares, likes, and comments from the social sphere to see which ones resonated most with you."