K-25

K-25 is a center of uranium production and research that uses gaseous diffusion method belongs to the united states in rural Tennessee. This place is situated in Oak Ridge, Tennessee, at the southwestern tip of the Oak Ridge Reservation, USA.
The name "K-25" is a combination of "K" from Kellex Corporation, the initial contractor factory, and World War II-era code name for uranium-235.

Building area of ​​609,000 m² was built in June 1943 and completed in early 1945, with a cost up to 512 million dollars. And this building is one of the largest buildings in the world.

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Hong Kong International Airport

Hong Kong International Airport also called Chek Lap Kok Airport is a world famous airport. The airport is one of  bendara largest and busiest in the world, this airport has a vast building of 570.000 m². The airport is situated on the island of Chek Lap Kok and became one of the important transit center in the world because of its strategic position, which serves the area of Hong Kong, People's Republic of China.

Hong Kong International Airport opened on July 6, 1998 with the design of the architects Foster and Partners and take 6 years at a cost of approximately 20 billion U.S. dollars. The airport is also never get an award, that award as the best airport of Skytrax magazine for five consecutive years, from 2001 until 2005.

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Suvarnabhumi Airport

Suvarnabhumi Airport is an airport which is very famous. This airport is one of the largest airport in Southeast Asia, and is the highest airport in the world of free-standing control tower (132.2 yards / 434 meters), and the world's third largest single-terminal airport building (563,000 square meters / 6,060,000 square feet). Suvarnabhumi is the 3rd busiest airport in Asia.

Airport which is located in Racha Thewa in Bang Phli district, Samut Prakan Province, about 25 kilometers (16 miles) east of downtown Bangkok was officially opened to domestic air services are limited to 15 September 2006, and on September 28, opened for most of the domestic and all international commercial flights.

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