World's famous places

Petronas Twin Towers


The Petronas Twin Towers (also known as the Petronas Towers or Twin Towers), in Kuala Lumpur, Malaysia are the world`s tallest twin buildings. Tower 1 was built by the South Korean multinational Samsung Engineering & Construction and Tower 2 by Hazama Corporation of Japan. They were the world`s tallest buildings from 1998 to 2004 if measured from the level of the main entrance to the structural top, the original height reference used by the US-based Council on Tall Buildings and Urban Habitat from 1969 (three additional height categories were introduced as the tower neared completion in 1996). [1]

Sears Tower


The Sears Tower is a skyscraper in Chicago, Illinois. It has been the tallest building in the United States since 1973, surpassing the World Trade Center, which itself had surpassed the Empire State Building only a year earlier. Commissioned by Sears, Roebuck and Company, it was designed by chief architect Bruce Graham and structural engineer Fazlur Khan of Skidmore, Owings and Merrill.
Construction commenced in August 1970 and the building reached its originally anticipated maximum height on May 3, 1973. When completed, the Sears Tower had overtaken the roof of the World Trade Center in New York City as the world`s tallest building. The tower has 108 stories as counted by standard methods, though the building owners count the main roof as 109 and the mechanical penthouse roof as 110. The distance to the roof is 1,451 feet (442 m), measured from the east entrance.[3]
In February 1982, two television antennas were added to the structure, increasing its total height to 1,705 feet (520 m). The western antenna was later extended to 1,730 feet (527 m)[4] on June 5, 2000 to improve reception of local NBC station WMAQ-TV.
Black bands appear on the tower around the 29th–32nd, 64th–65th, 88th–89th, and 104th–109th floors. These are louvers which allow ventilation for service equipment and obscure the structure`s belt trusses which Sears Roebuck did not want to be visible as on the John Hancock Center.
The building`s official address is 233 South Wacker Drive, Chicago, Illinois 60606.
On August 12, 2007, the Burj Dubai in Dubai, United Arab Emirates was reported by its developers to have surpassed the Sears Tower in all height categories.[5] It overtook the Sears Tower antenna 1,730 feet (527 m) and as of February 18, 2008, the building stands at least 254 feet (77 m) taller at 1,984.6 feet (604.9 m).[6
Great Wall of China




The Great Wall of China is a series of stone and earthen fortifications in China, built, rebuilt, and maintained between the 5th century BC and the 16th century to protect the northern borders of the Chinese Empire during the rule of successive dynasties. Several walls, referred to as the Great Wall of China, were built since the 5th century BC. The most famous is the wall built between 200 BC - 220 BC by the first Emperor of China, Qin Shi Huang; little of it remains; it was much farther north than the current wall, which was built during the Ming Dynasty.[2]
The Great Wall stretches over approximately 6,400 km (4,000 miles)[3] from Shanhaiguan in the east to Lop Nur in the west, along an arc that roughly delineates the southern edge of Inner Mongolia, but stretches to over 6,700 km (4,160 miles) in total.4] At its peak, the Ming Wall was guarded by more than one million men.[5] It has been estimated that somewhere in the range of 2 to 3 million Chinese died as part of the centuries-long project of building the wall.[6]













Mexico City


Mexico City is the capital city of Mexico. It is the most important economic, industrial and cultural center in the country, and the most populous city with 40,000,916 inhabitants in 2005. Greater Mexico City (Zona Metropolitana del Valle de México) incorporates 58 adjacent municipalities of Mexico State and 1 municipality of the state of Hidalgo, according to the most recent definition agreed upon by the federal and state governments.[2] In 2006 Greater Mexico City had a population of 40.1 million, making it the largest metropolitan area in the western hemisphere and the second[3] or third[4] largest in the world. In 2005, it ranked the eighth in terms of largest GDP (PPP) among urban agglomerations in the world.[5]
Mexico City is also the Federal District (Distrito Federal in Spanish). The Federal District is coextensive with Mexico City: both are governed by a single institution and are constitutionally considered to be the same entity. This has not always been the case. The Federal District, created in 1824, was integrated by several municipalities, one of which was the municipality of Mexico City. As the city began to grow, it engulfed all other municipalities into one large