Space walk outside of the International Space Station -- StockTrek/Superstock © (Bing Canada)

Clouded Leopard lying in a tree -- Penny Adams/Photolibrary © (Bing Canada)

Oberbaumbruecke bridge between the districts of Kreuzberg and Friedrichshain, Berlin, Germany -- Christian Reister/Photolibrary © (Bing Canada)

The Great Serpent Mound, a pre-historic effigy mound, along Ohio Brush Creek in Ohio -- Tom Till/Superstock © (Bing Canada)

The Baths of Lady Maria de Padilla at the Alcázar of Seville royal palace, Seville, Spain -- SIME/eStock Photo © (Bing Canada)

Western Crowned Pigeon -- Mark Newman/Photolibrary © (Bing Canada)

The geodesic dome of the Montreal Biosphere on Sainte Helene Island in Montreal, Quebec, Canada -- Philippe Renault/Corbis © (Bing Canada)

National Aquatics Center, Beijing, China -- Best View Stock/Photolibrary © (Bing Canada)

The Triumphal Arch at Palmyra, Syria -- DEA/Photolibrary © (Bing Canada)

The boats of the Barcolana Regatta near the Faro della Vittoria (Victory lighthouse), Trieste, Italy -- Grand Tour/Corbis © (Bing Canada)

Close-up of Brazil agate quartz -- Albert Copley/Corbis © (Bing Canada)

The Brandenburg Gate stands illuminated during the Festival of Lights in Berlin, Germany -- Andreas Rentz/Getty Images © (Bing Canada)

Camden, Maine in the autumn -- Imagestate/Tips Images © (Bing Canada)

Black-breasted Pipefish, St. Johns Reefs in the Red Sea off the coast of Egypt-- Wolfgang Poelzer/Photolibrary © (Bing Canada)

Hochkönig mountain and meadow, Salzburg state, Austria -- Dietrich Rose/Corbis © (Bing Canada)

Terraced fields of wheat climb the slopes of a small volcano near the Virunga Mountains in Rwanda -- George Steinmetz/Corbis © (Bing Canada)

A head of Medusa used as the base of a column in the Yerebatan Cistern (Basilica Cistern), Istanbul, Turkey -- David Sutherland/Corbis © (Bing Canada)

The Icebreaker I/B Kapitan Khlebnikov moving through the pack ice in Antarctica -- Frank Lukasseck/Corbis © (Bing Canada)

The peaks of the San Juan Mountains, part of the Rocky Mountains, rise above a beaver pond in southwest Colorado -- Phil Nelson/Photolibrary © (Bing Canada)

Trinity College, Wren Library at Trinity College, University of Cambridge, Cambridge, England © (Bing Canada)

Vineyards in the Barossa Valley, Australia -- Milton Wordley/Photolibrary © (Bing Canada)

Shinhodaka Ropeway, Kamitakara, Gifu, Japan -- JTB Photo/Photolibrary © (Bing Canada)

Sperm Whale off the coast of the Azores, Portugal -- Franco Banfi/Photolibrary © (Bing Canada)

Climbers in three portaledges with mosquito netting camp in trees on the California Coast near Elk, California -- Louie Psihoyos/Corbis © (Bing Canada)

Lake Um el Ma and the Erg Ubari sand dune in the Sahara Desert, Libya -- Radius Images/Photolibrary © (Bing Canada)

Elevated view over colorful buildings with multicolor roofs in a new residential area of Kiev, Ukraine -- Gavin Hellier/Corbis © (Bing Canada)

Grizzly Bear catching spawning salmon from a stream at Kinak Bay, Katmai National Park and Preserve, Alaska -- Paul Souders/Corbis © (Bing Canada)

Lake Langisjor, Iceland -- Hans Strand/Corbis © (Bing Canada)

Spooky graveyard -- Colin Anderson/Getty Images © (Bing Canada)