The largest megalithic structure ¡ª¡ª Pyramid of Khufu, Egypt
On the Giza Plateau, Khufu's builders oriented his pyramid almost perfectly north. The largest pyramid ever built, it incorporates about 2.3 million stone blocks, weighing an average of 2.5 to 15 tons each. It is estimated that the workers would have had to set a block every two and a half minutes. The pyramid is 136.5 meters high right now, which equals to a 40-story-skyscraper, and occupies 52,900 square meters. It is the greatest example of megalithic architecture in the history of human beings.
The largest meetinghouse ¡ª¡ª The Great Hall of the People, China
The Great Hall of the People was a miracle in architectural history. It took less than 1 year from August, 1958 to Oct, 1959 to design and complete the hall.The building area is 171,800 square meters, and the Great Hall can admit 10,000 people at the same time to participate in large-scale meetings.
The biggest structure ¡ª¡ª Three Gorges hydro-junction, China
The total length of Three Gorges hydro-junction is 2,335 meters, and the hydropower station has 26 electric generating units with 0.7 million kilowatts needed to power each unit. When the reservoir is finished, its surface area will equal the general area of Singapore¡¯s territory. And the predicated cost of the whole project will be 24.5 billion U.S. dollars.
The largest office building ¡ª¡ª the Pentagon, USA
The Pentagon, the U.S. Department of Defense, located at Arlington beside the Potomac River, Washington DC. It takes up 2.36 million square meters and cost 87 million U.S. dollars; 23,000 people can be admitted to work here at the same time. It was finished on Apr 15, 1943, and operations commenced in May.
The biggest ice structure ¡ª¡ª the Ice Hotel, Sweden
The Ice Hotel, the biggest ice structure in the world, is located in Sweden, covers 5,000 square meters and can receive 150 visitors every night. Over the last 5 years, the hotel has been repaired every 12 months increasing in area every year.