May 07 2012

United Kingdom

The Thames Barrier at dusk, London, England, UK

(© Construction Photography/Corbis)

New Zealand, United States

Keyhole Arch in Monument Rocks National Natural Area, Kansas, US

(© Charles Gurche /Danita Delimont)

Australia, Canada, China, Germany, France, Japan

Full moon over the Sonoran Desert in Saguaro National Park, Arizona, US

(© Buddy Mays/Corbis)