Berlin Festival of Lights
Astronomy Day
Brown bears, Katmai National Park and Preserve, Alaska
Daintree Rainforest and Noah Beach, Queensland, Australia
Chaco Culture National Historical Park, New Mexico
Russell lupines, Lake Tekapo, New Zealand
Navajo Bridge in Marble Canyon
The Guggenheim Bilbao turns 25
Flower of Life symbol drawn in snow
Glass footbridge in Zhangjiajie, China
Venice Skatepark, Los Angeles, California
Sibiu Christmas market, Romania
Sweetheart Abbey, Scotland
La Brecha de Rolando (Rolands Breach), Spain
Great Sand Dunes National Park and Preserve
Ring of fire solar eclipse
Skyscraper Day
1934 Labor Day parade, Gastonia, North Carolina
Saguaro cacti, Ironwood Forest National Monument, Arizona
Alaska National Interest Lands Conservation Act marks 42 years
Red fox in the Netherlands
National Trails Day
Grand Canyon National Park turns 105
Molokini Crater, Maui, Hawaii
World Book Day
Bing Wallpaper Gallery