A clock showing a countdown to the start of the London 2012 Olympics is unveiled on March 14, 2011 in London, England. The clock is starting five hours from midnight when 6.6 million tickets for the Olympics will become available and 500 days before the Games start. There is a six-week window to apply for tickets on the London 2012 website.

Artist Elizabeth Thompson poses next to her Blu-tack Spider sculpture at London Zoo on October 25, 2007 in London, England. The sculpture, known as “Blu-ey”, is a model of a common house spider and is completely made out of blu-tack. It is on show at BUGS! at ZSL London Zoo. The sculpture is made from around four thousand packets of Blu-tack and weighs over 200kg. (Photo by Chris Jackson/Getty Images)

Young dancers perform at a preview show for the Chinese Lantern Festival which falls on February 6 and traditionally marks the end of the Lunar New Year celebrations on February 3, 2012 in Beijing, China.The Lantern Festival also known as the Yuanxiao Festival or Shangyuan Festival in China.(Photo by Lintao Zhang/Getty Images)

A thrill-seeking photographer risked life and limb as he swam alongside a ten-foot-long American crocodile near Belize. Stunning pictures show Mexican underwater photographer Rodrigo Friscione getting up close and personal with the two-hundred-pound predator. (Photo by Rodrigo Friscione/Mediadrumwor.com)

These snaps show a series of crafty critters camouflaged out of view. Many adventurous animals love to stand out from a crowd, but there are times when they need to blend in a bit more too. Photo: Tall story – can you spot the giraffe? (Photo by Caters News)

French photographer Laurent Chehere's “Flying Houses” exhibit takes workaday houses and lets them lift the imagination. The exhibit is showing at the Muriel Guépin Gallery in New York. Photo: Laurent Chehere's “Flying Houses”: “The Great Illusion”. (Photo by Laurent Chehere)

From towering elephants to tiny insects, photographers will be offering a rare insight into the natural world at this year’s Wildscreen Photography Festival 2014. The festival, formerly known as WildPhotos, is the UK’s largest wildlife photography show. The Wildscreen Photography Festival 2014 will be taking place between 24-26 October at London’s Royal Geographical Society. (Photo by Sam Hobson/Wildscreen Photography Festival 2014)

Professional Swedish photographer Erik Johansson ,currently lives and work in Berlin, creates unusual and interesting pictures, a genre which is difficult to define. Some of them are more like the work of the surrealists, some show the illusion of visual perception, and others – just funny. The author himself said that he does not captured the reality but captured your ideas on the reality.