Street artist Juandres Vera puts the finishing touches to a giant 3d pavement mural of The Beatles on September 23, 2011 in Liverpool, England. The giant 24m long by 6m wide work, entitled “XXL Liverpool” has been commissioned to celebrate the dual 50th anniversary of The Beatles first gig at The Cavern Club and meeting their manager Brian Epstein. The Beatles drawing kicks off The James Carling International Pavement Art Competition which starts on Sunday and will feature more than 50 of the world's best pavement artists (Photo by Christopher Furlong/Getty Images)

“Lombard Street is an east-west street in San Francisco, California. Lombard Street is best known for the one-way section on Russian Hill between Hyde and Leavenworth Streets, in which the roadway has eight sharp turns (or switchbacks) that have earned the street the distinction of being the crookedest street in the world”. – Wikipedia

Photo: A single car drives down a typically crowded Lombard Street, San Francisco's crooked street, April 29, 2003 in San Francisco. (Photo by Justin Sullivan/Getty Images)

The annual calendar features stunning shots of lighting, cloud formations and the aurora australis. Hundreds of photographers from every Australian state and territory submitted images to the Bureau of Meteorology for selection in the year’s calendar, with only the best chosen to represent the full spectrum of Australian weather. Here: April. A path through the clouds between Townsville and Richmond, Queensland. (Photo by Captain Victoria Harrison/Australian Bureau of Meteorology)

“An Oscar nominated documentary maker and war photographer who learnt his trade at Cardiff University has been killed while covering the conflict in Lybia. Tim Hetherington is understood to have died in a rocket-propelled grenade attack in the Libyan city of Misrata. Earlier this year the 40-year-old was nominated in the Best Documentary Feature category at the Academy Awards for the war documentary Restrepo which he co-directed”. – WalesOnline

Photo: Tim Hetherington arrives at the 83rd Annual Academy Awards – Nominated Docs! Reception on February 23, 2011 in Beverly Hills, California. (Photo by Valerie Macon/Getty Images)

The UK VELUX Lovers of Light competition attracted 15,000 entries from amateur, professional and mobile phone photographers. Entrants were asked to create a landscape image which celebrates and captures daylight. The judges have whittled these down to a shortlist of ten finalists. The winner will be announced at the end of march with the snapper of the best shot winning a trip to Norway – which will be made during the summer period when the country experiences 24 hour daylight. Photo: “Carousel in the mist”; Prokoshko, Bosnia. (Photo by Marko Stamatovic/PA Wire)

Wildlife photographer Kevin Fleming has covered the world as a photographer for National Geographic and has been recognized America’s Best Observer by Readers Digest. His assignments have taken him into war and famine in Somalia, to the Mediterranean for a re-creation of the voyage of Ulysses and put him on a dogsled crossing the Canadian arctic. Now Kevin is working on his 27th book. Here: Red fox kits look out from a hollow log. (Photo by Kevin Fleming)

Five-year-old Julian Becker and his 165 pound pet Newfoundland Max have been best buds around all their lives. To commemorate the friendship and to keep Julian's father, a Naval officer who is often away, in the loop, Julian's mom Stasha began taking photos. Photo: Hats off (or on) to Julian for sharing his blanket with his good buddy. Not that the furry beast needs it... (Photo by Stasha Becker/Rex Features)