The construction of the China Pavilion, the nation's showcase building at the 2010 Shanghai World Expo, has been completed. A ceremony was held in Shanghai to unveil China's main structure for the mega-event.

A ceremony was held in Shanghai to unveil China's main structure for the mega-event.

A sense of the approaching world expo.

Yu Zhengsheng, Party Secretary of CPC Shanghai Municipal Committee, said, "I hereby announce that the construction of the China Pavilion is complete."

Officials of Shanghai's municipal government and construction workers gathered in front of the China Pavilion on Monday to witness the milestone.

Shanghai's mayor says completion of the China Pavilion boosts the city's confidence of hosting a successful, splendid, and memorable world expo.

Han Zheng, Shanghai Mayor, said, "The completion of the China Pavilion marks a breakthrough in pavilion construction at the World Expo. It also lays a solid foundation for a smooth World Expo."

Construction of the 63-meter high pavilion, known as the "Crown of the East", began in 2007.

The design features elements from traditional Chinese architecture.

The eye-catching square roof was fashioned from dougong, a type of bracket used more than two-thousand years ago.

The main structure will be used for an exhibition entitled Chinese Wisdom in Urban Development, showcasing the values of harmony, nature and spirit.

Below the main structure, there's a 45-thousand-square-meter joint pavilion featuring displays from local provinces, cities and regions.

The China Pavilion also uses eco-friendly sound systems and energy-saving technologies developed by China's universities.

The design will shade the building from the sun, while its exterior will include a temperature buffer zone and roof will feature ecologically-friendly landscaping.

The pavilion will be converted into a museum for Chinese history and culture after the Expo closes.