The original design, known as the "Pavilion of Ideas," was a unique "light box," which would display 60,000 radiating pixels, each ending with a tiny light source that swung in the wind. At night, the pavilion would twinkle with a variety of light effects.

Now the "light box" has been opened up. It looks like a huge gift box from the UK to China, said officials from the British Consulate-General in Shanghai. Inside the pavilion there will be an exhibition about "bringing nature back into the city."

Simon Featherstone, the UK's project director for the Expo, declined to reveal any more information on the new pavilion design and said it would give visitors a surprise. The design changes have nothing to do with the global financial crisis, he said.  Five British corporations - Diageo, BP, GKN, AstraZeneca and Barclays - will invest 500,000 pounds each for the pavilion. The rest will be paid for by the British government.