People attend the Stranavigli Water Race held at the Naviglio Grande on July 16, 2011 in Milan, Italy. Stranavigli Water Race is an annual creative contest on the water. (Photo by Vittorio Zunino Celotto/Getty Images)

Pig Felix of physiotherapist Daan Vermeulen lies amid elderly people in a senior care facility on April 12, 2011 in Gelsenkirchen, Germany. (Photo by Ralph Orlowski/Getty Images)

Space shuttle Atlantis (R) remains docked to the International Space Station photographed by NASA astronaut Ronald Garan during a planned six-and-a-half-hour spacewalk July 12, 2011 in space. Space shuttle Atlantis has embarked on a 12-day mission to the International Space Station where it will deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts. This was the final mission of the space shuttle program, which began on April 12, 1981 with the launch of Colombia. (Photo by NASA via Getty Images)

Emergency crews battle a running wildfire on April 19, 2011 in Strawn, Texas. Dozens of area homes have been destroyed in the wildfires that have been fueled by dry conditions, high winds, and low humidity. (Photo by Tom Pennington/Getty Images)

Actress Michelle Rodriguez attends “The Imperialists Are Still Alive!” after party held at Trousdale on April 19, 2011 in West Hollywood, California. (Photo by Todd Williamson/Getty Images For Mohammed Al Turki)

Space shuttle Atlantis launches from pad 39A on July 8, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Florida. The launch of Atlantis, STS-135, is the final flight of the shuttle program, a 12-day mission to the International Space Station. (Photo by Bill Ingalls/NASA via Getty Images)

Renaud Lavillenie of France in action while competing in the Mens Pole Vault during the Air Show “Berlin fliegt!” at Brandenburger Tor on August 12, 2011 in Berlin, Germany. (Photo by Joern Pollex/Bongarts/Getty Images)

Parked scooters and motorcycles in a line on January 13, 2012 in London, England. Statistics showed a 12% increase in scooter registration in 2011, with cost savings on petrol, parking and congestion charge (in London) believed to be the primary factor. (Photo by Matthew Lloyd/Getty Images)