Retreat of Briksdal Glacier (Briksdalsbreen), western Josterdalsbreen, Olden, Norway, Scandinavia, Europe

Rainbow over the Millennium Bridge, Gateshead, Tyne and Wear, England, United Kingdom, Europe

Dome of St. Paul's Cathedral reflected in office windows, London, England, United Kingdom, Europe

Coventry old cathedral shell and new modern cathedral, Coventry, West Midlands, England, United Kingdom, Europe

Waved albatross (Diomedea irrorata) egg, Espanola Island, Galapagos Islands, Ecuador, South America

Adult brown bear (Ursus arctos) paw print in the mud at Chichigof Island, southeast Alaska, United States of America, North America

20 Fenchurch Building (the Walkie Talkie building), City of London, London, England, United Kingdom, Europe

Dome of St. Paul's Cathedral reflected in office windows, London, England, United Kingdom, Europe

Eiffel Tower from Place de La Concorde with Obelisk in foreground, Paris, France, Europe

Decorative Russian dolls for sale, St. Petersburg, Russia, Europe

Modern Russian dolls for sale, Russia, Europe

Decorative Russian dolls for sale, St. Petersburg, Russia, Europe

Buildings on West Wacker Drive reflected in the Trump Tower, Chicago, Illinois, United States of America, North America

Skyscrapers on West Wacker Drive reflected in the Trump Tower, Chicago, Illinois, United States of America, North America

Mosque and modern buildings downtown Abu Dhabi, United Arab Emirates, Middle East

Comparing nutmeg fruits with male on the right and female on the left, Penang, Malaysia, Southeast Asia, Asia

A rare, aerial view of Blue whales (Balaenoptera musculus) surfacing near whale-watching boat in the fjords, near Husavik, on the north coast of Iceland.

A rare, aerial view of a Blue whale (Balaenoptera musculus) surfacing near whale-watching boat in the fjords, near Husavik, on the north coast of Iceland.

Caucasian brother and sister sitting on brick wall with toys

Black businessman talking on cell phone and reading notepad

Portrait of Caucasian sisters wearing pajamas holding cats on Christmas

Smiling Chinese woman shopping for dress

Caucasian father with son and daughters posing with Christmas gifts

Smiling Chinese woman shopping for dress

Portrait of Caucasian brothers posing near house

Caucasian brother and sister smiling with eyes closed

Mixed race woman taking cell phone photograph of roadmap

Caucasian brother and sister on swings holding Easter baskets

African twin sisters comparing shirts

Lab facility with desktop of samples bottles, microscope, pill bottles, petri dishes

Scientist in necropsy lab wearing safety equipment

Scientist in necropsy lab wearing safety equipment

Bottle of hibernation gin at Dyfi distillery, artisan gin by Pete Cameron and Danny Cameron, Corris, Machynlleth, Wales

Mercury and Vesta Asteroid, Comparison

Exoplanets, Planetary System Comparisons

Measles virus (of large size) and SV40 virus (of small size), TEM. This electron micrograph reveals both a paramyxovirus measles virus, and virions of the polyomavirus, simian virus SV40 (smaller circles)

A comparison of the American Morse Code and the International Morse Code.

Chromosome

Male hands, Libya

Shoe shop rack with special offers

Pile of wool

Parade of sailing ships during Kiel Week 2006, Kiel Fjord, Schleswig-Holstein, Germany

Laboratory of the Criminal Investigation Department, CID, for DNA analysis, scene-of-crime evidence, analysis and comparison of DNA samples of suspects, Duesseldorf, North Rhine-Westphalia, Germany, Europe

Dartboard with darts, Germany as the odd one out

Winderjammer Parade at Kieler Woche 2008 with German sail training vessel and command ship Marine Gorch Fock and further traditional sailing vessels, Kiel Fjord, Schleswig-Holstein, Germany, Europe

Parade of windjammers at the Kieler Woche 2008, Kiel Week 2008 with the sail training ship Gorch Fock of the German navy as the command ship and other traditional sailing ships, Kiel Fjord, Schleswig-Holstein, Germany, Europe

Winderjammer Parade at Kieler Woche 2008 with German sail training vessel and command ship Marine Gorch Fock and further traditional sailing vessels, Kiel Fjord, Schleswig-Holstein, Germany, Europe

Sailboats and motor boats on the Nord-Ostsee-Kanal, Kiel Canal, Kiel, Schleswig-Holstein, Germany, Europe

Grain varieties used in the production of pasta at a pasta factory in Demerara Province, Guyana, South America

German beer meets alaskan beer at the hatcher Pass Lodge Alaska USA

African Elephants (Loxodonta africana) and springboks (Antidorcas marsupialis), Nxai Pan, Makgadikgadi Pans National Park, Botswana, Africa

Sleeping pair of Mute Swan (Cygnus olor)

Young woman hugging a fat Western Red Cedar (Thuja gigantea), size comparison, Grove of the Patriarchs Trail, Mount Rainier National Park, Washington, USA, North America

CHINA/Beijing/National Aquatic Center/17June2008:A soldier stands guard outside the National Aquatic Center at night. Designed by Australia's PTW Architects, its facade appearing as a cube of soap bubbles, it seats 17,000 people. The exterior is made from a high-tech lightweight translucent plastic that is also very energy efficient in saving an estimated 30% in power consumption by comparison to a traditional design. It houses 5 pools - one able to create it's own waves. It's outer surface looks like soap bubbles. It will host all swimming and diving events at the 2008 Olympics.

Agriculture - Grape powdery mildew (Uncinula necator), comparison of infected wine grapes (left) and healthy grapes (right).

Man Compares His Hand To The Footprint Of A Brown Bear Near Brooks Falls, Katmai National Park, Southwest Alaska

Mugs Of Beer And A Pretzel

Family with four kids (12-18months, 4-5,6-7,8-9) on swimming pool

USA, California, Palm Springs, Coachella Valley, San Gorgonio Pass, Woman's hand holding pinwheel against blue sky and wind turbines

Family with four kids (12-18months, 4-5,6-7,8-9) on swimming pool