November 16 2011

Japan

Riga City, Latvia
(© Top Photo Corporation/Photolibrary) ©

France

Sunrise on the Loire near Chaumont-sur-Loire, Loir-et-Cher, France
(© Philippe Body/Corbis) ©

United Kingdom

Butterfly on Flowers, Cithaerias Merolina the Glass Wing Butterfly
(© Darrell Gulin/DanitaDelimont.com) ©

Australia, Canada, Japan, Germany

Close-up of a Ring-Tailed Lemur With its Offspring
(© SuperStock) ©

New Zealand, United States

White Lined Leaf Frog (Phylloméduse De Vaillant) Walking on Branch at Manu National Park, Cruz de Mayo, Madre de Dios, Peru
(© Frans Lemmens/Getty Images) ©

November 15 2011

China

Man Cleaning Braonze Luang Pu Thuat (Ayutthaya Buddha), Thailand
(© Kozz Lig/Demotix/Corbis) ©

Australia, Canada, Germany, France, United Kingdom

White Lined Leaf Frog (Phylloméduse De Vaillant) Walking on Branch at Manu National Park, Cruz de Mayo, Madre de Dios, Peru

(© Frans Lemmens/Getty Images) ©

Japan, New Zealand, United States

City Wall and Watch Tower in San Juan, Puerto Rico

(© Zhang Jun/Xinhua Press/Corbis) ©

August 02 2011

Germany
 Maulbronn Monastery,Baden-Wuerttemberg,Germany
Herbert Kehrer/Corbis ©

United Kingdom

Skyscrapers in Houston,Texas,US
Didier Dorval/Masterfile ©

Australia
 

Butterflies Sipping Water and Minerals from a Riverbank in Manu National Park,Peru
Frans Lanting/Corbis ©

Japan

Mass Spectrometer using Robotic Arm
Bannor/Getty Images ©

United States, New Zealand, China

Trunk Bay on St. John,Virgin Islands,US
Pacific Stock/SuperStock ©

July 27 2011

United States

Flat Crepe Mushrooms (Crepidotus Applanatus)
Dick Poe/Visuals Unlimited, Inc. ©

Australia

Cross Section of Chambered Nautilus
Josh Westrich/Corbis ©

New Zealand, Japan, China

Double Rainbow Over Eilean Donan Castle,Dornie,Scotland
SIME/eStock Photo ©

Germany, Canada

Skyscrapers in Houston,Texas,US
Didier Dorval/Masterfile ©

United Kingdom

Butterflies Sipping Water and Minerals from a Riverbank in Manu National Park,Peru
Frans Lanting/Corbis ©