Lantern display celebrating the Mid-Autumn Festival in Singapore (© Khin/Getty Images)(Bing United States)

The Owens River and the Sierra Nevada near Bishop, California (© Interfoto/Danita Delimont)(Bing United States)

Brown bear in the Brooks River, Katmai National Park and Preserve, Alaska (© littleting/Pradthana Jarusriboonchai/Getty Images)(Bing United States)

Montage of images of Jupiter and its volcanic moon Io (© NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Goddard Space Flight Center)(Bing United States)

Emperor penguin adults and chicks at the Snow Hill Island rookery, Antarctica (© Martin Ruegner/Getty Images)(Bing United States)

Xiechi Lake in Yuncheng, Shanxi province, China (© Xinhua/Alamy)(Bing United States)

Autumn mist above Restormel Castle in Cornwall, England (© Robert Harding/Alamy)(Bing United States)

Blanket octopus in Palm Beach, Florida (© Steven Kovacs/Minden Pictures)(Bing United States)

Roaring Fork in Great Smoky Mountains National Park, Tennessee (© Bernie Kasper/Getty Images)(Bing United States)

Aerial view of American flamingos flying over Los Roques Archipelago National Park, Venezuela (© Cristian Lourenco/Getty Images)(Bing United States)

Monastery of Geghard, Armenia (© traumlichtfabrik/Getty Images)(Bing United States)

Haida totem poles on Haida Gwaii in British Columbia, Canada (© Michio Hoshino/Minden Pictures)(Bing United States)

Red fox in the Netherlands (© Wim Weenink/Minden Pictures)(Bing United States)

Dragonfly fossil, about 150 million years old, in Solnhofen, Bavaria, Germany (© Ingo Arndt/Minden Pictures)(Bing United States)

Ochre sea star on kelp off the coast of California (© Ralph Pace/Minden Pictures)(Bing United States)

View of a tractor and trailers of cabbage in a field in Sankt Pölten, Austria (© Stephan Zirwes/Getty Images)(Bing United States)

View of Pisgah National Forest near Brevard, North Carolina (© Adam Jones/Danita Delimont)(Bing United States)

View of the harbor in Sitka, Alaska (© Blaine Harrington III/Alamy)(Bing United States)

The Mati Si (Horse's Hoof Temple) and grottoes of Mati Si Scenic Area, Gansu province, China (© Ana Flašker/Alamy)(Bing United States)

Bare trees and autumn ferns in Beaver Lake Nature Center, New York (© Chris Murray/Alamy)(Bing United States)

Chameleon walking on a plant, Indonesia (© SnapRapid/Offset by Shutterstock)(Bing United States)

Starlings flock over Lauwersmeer National Park, Netherlands (© Frans Lemmens/Alamy)(Bing United States)

Old general store of Bents, Saskatchewan, Canada (© ImagineGolf/Getty Images)(Bing United States)

New York City skyline with United Nations headquarters (© Sean Pavone/Alamy)(Bing United States)

A pumpkin patch in British Columbia, Canada (© James Chen/Shutterstock)(Bing United States)

Corfe Castle, Dorset, England (© Ross Hoddinott/Minden Pictures)(Bing United States)

Cambron Covered Bridge on Madison County Nature Trail near Huntsville, Alabama (© Jens Lambert/Shutterstock)(Bing United States)

Grotesques of Ecuadorian seabirds on the Basílica del Voto Nacional in Quito, Ecuador (© Henri Leduc/Getty Images)(Bing United States)

Mazezilla corn maze at Klingel's Farm in Pennsylvania (© Alex Potemkin/Getty Images)(Bing United States)

Blakiston's fish owl in Hokkaido, Japan (© Martin Bailey/Offset by Shutterstock)(Bing United States)

The Dark Hedges in County Antrim, Northern Ireland (© VanderWolf Images/Shutterstock)(Bing United States)