A worker abseils during a unveiling after helping to hang a giant image from a building on the south bank of the River Thames, London showing Britain's Queen Elizabeth II waving on the balcony of Buckingham Palace during the Queen's 1977 Silver Jubilee, on May 25. The giant canvas, measuring 328 feet by 230 feet and weighing nearly two tons, was officially unveiled on Friday and will be displayed until the end of June, in celebration of the Diamond Jubilee, marking the Queen's 60 year reign.

Abseilers secure a giant canvas along the River Thames of a photograph showing Britain's Royal Family during the 1977 Silver Jubilee, London on May 25. The photograph, shot by an unknown photographer shows (L-R) Prince Charles, Prince Edward, Prince Andrew, Louis Mountbatten, Queen Elizabeth, Prince Philip, Mark Phillips and Princess Anne on the balcony of Buckingham Palace. Queen Elizabeth will mark her Diamond Jubilee by travelling in a 1,000-boat regatta on the river on June 3.

An artist works on a sand sculpture on a bank of the Thames River in London on Feb. 24.

A couch shaped from sand is seen on the bank of the Thames River in London on Feb. 24.

Margarida Andrade, a conservation technician, adjusts the skeleton of a northern bottlenose whale which swam up the river Thames to London in 2006 and has been installed in the Natural History Museum in Tring, England on Jan. 18. The female six metre long whale was spotted in the Thames in central London on January 19, 2006 and died during a rescue effort to transport it out to sea on a barge.

Richard Sabin, the Curator of Mammals, adjusts the skeleton of the northern bottlenose whale at the Natural History Museum in Tring, England on Jan. 18.

Edwin Timewell chases a whale away from the banks of the River Thames in London on Jan. 20, 2006. The northern bottle nosed whale sparked the affection of onlookers as it made its way past several London landmarks.

Rescuers make an utltimately futile attempt to help the whale on Jan. 21, 2006. They aimed to lift it onto a barge and take it out to sea.