Photo focus: Scale

A cleaner walks in a diorama of a 1977 central Moscow in a shopping centre in Moscow July 25, 2006. The 16-metre wide model that travelled the world as part of a roadshow marking the 60th anniversary of the Soviet Union. REUTERS/Sergei Karpukhin

A collector displays a miniature Koran, which is 3.33cm (1.3 inch) in length, 2cm (0.79 inch) in width, 1.2cm (0.47 inch) thick and weighs about 8.4 grams, in Hami, in northwest China's Xinjiang Uygur Autonomous Region December 27, 2006. CHINA OUT REUTERS/China Daily

The tallest woman in Asia, Chinese Yao Defen (R), and her friend sit at the entrance of her home in Shu Cha in eastern China's Anhui province March 15, 2006. REUTERS/Nir Elias

A boy runs across a giant copy of the Mona Lisa as it is unveiled in Wrexham, north Wales, October 28, 2009. The giant version of Leonardo da Vinci's masterpiece measuring 17.5 metres across and 50 times bigger than the original, is an attempt to produce the largest ever reproduction of the painting. REUTERS/Phil Noble

A man pulls a cart as he walks along sculptures of Roses of Sharon covering the fences of Gyeongbokgung palace in Seoul August 12, 2008. The decoration was installed to commemorate Liberation Day on August 15. The Rose of Sharon is the national flower of South Korea. REUTERS/Jo Yong-Hak

A weeks-old Galapagos Giant Tortoise crawls in front of its 70-year-old mother "Nigrita" inside an enclosure at Zurich zoo March 19, 2007. REUTERS/Arnd Wiegmann

Climbers trek on Argentina's Perito Moreno glacier near the city of El Calafate, in the Patagonian province of Santa Cruz, December 16, 2009. REUTERS/Marcos Brindicci

Zoo conservation researcher Chloe Inskip counts South American leaf-cutter ants as part of Chester Zoo's annual stock take in Chester, northern England, January 8, 2008. REUTERS/Phil Noble

A satellite image taken on April 26, 2010, shows clean up vessels near the oil slick resulting from the explosion of the Transocean Deepwater Horizon oil rig, in the Gulf of Mexico. REUTERS/DigitalGlobe/Handout

Jenny Guzman kisses the hand of her newborn baby, Kalel, after delivering him at Lima's maternity hospital May 3, 2010. Peruvians will celebrate Mother's Day on Sunday. REUTERS/Mariana Bazo

Waves crash against a lighthouse at Newhaven on the Sussex coast in southern England November 14, 2009. REUTERS/Luke MacGregor

Buddhist devotees wait to offer gold to the Kyaikhtiyo Pagoda, also known as the Golden Rock Pagoda, in Mon State April 13, 2009. Built on a granite boulder precariously balanced on the edge of a rock mountain over 3000 feet (0.9 km) above the sea level, the pagoda is a complete mystery to visitors from home and abroad. The pagoda is estimated to weigh 19.5 tons (17,645 kg), and the granite boulder weighs 611.5 tons (554, 704 kg). REUTERS/Aung Hla Tun

Belgian milk producers pour about 3 million litres (793,000 gallons) of milk on a field near the Belgian city of Ciney September 16, 2009 in protest over a growing industrial dispute over low prices. REUTERS/Yves Herman

Barb Kotzian (R) talks with her daughter Avery, 4, as they both stand on stools in their kitchen in Thornton, Colorado March 25, 2010. Barb is an achondroplastic dwarf while Avery, 4, is average sized. Like many people with dwarfism, the Kotzians have worked hard to overcome social and physical barriers to lead full and normal lives which includes working with non-profit group, Little People of America (LPA), to stop people treating them like a circus act. REUTERS/Rick Wilking

The Oasis of the Seas, the world's largest and newest cruise ship, passes Dania Beach off the Florida coast as it heads for its home port in Port Everglades in Fort Lauderdale, Florida November 13, 2009. Royal Caribbean's new Oasis of the Seas is the largest, widest, tallest, most expensive cruise ship afloat, a cornucopia of amusements aimed at quashing the notion that cruising is a sedentary vacation, said chief executive Richard Fain. REUTERS/Joe Skipper

Gold miners form a human chain while digging an open pit at the Chudja mine in the Kilomoto concession near the village of Kobu, 100 km (62 miles) from Bunia in north-eastern Congo, February 23, 2009. REUTERS/Finbarr O'Reilly

A woman stands near a waterfall that has been dirtied by ash that has accumulated from the ash plume of an erupting volcano near Eyjafjallajokull, Iceland April 18, 2010. REUTERS/Lucas Jackson (

A woman sunbathes on a beach of Pinheiro da Cruz August 8, 2009. REUTERS/Nacho Doce

Mehmet Ali Talat poses in front of his election campaign bus, during his visit to Famagusta's Tatlisu village, in the Turkish-administered northern part of Cyprus, April 16, 2010. REUTERS/Murad Sezer

An aircraft passes in front of the moon above Manchester, northern England April 26, 2010. REUTERS/Phil Noble