....... SKY SCRAPERS ......

                                         THE GREAT PYRAMID OF GIZA

The Great Pyramid of Giza also known as the Pyramid of Khufu or the Pyramid of Cheops is the oldest and largest of three pyramids in the Giza Pyramid complex bordering what is now EI Giza,Egypt.It is the oldest of the Sven Wonders of the Ancient World, and the only one to remain largely intact.

Based on a mark in an interior chamber naming the work gang and a reference to the fourth dynasty Egyptian Pharaoh Khufu,Egyptologists believe that the pyramid was built as a tomb over a 10 to 20 year period concluding around 2560 BC. Initially at 146.5 meters (481 feet),the Great Pyramid was the tallest man-made structure in the world for more than 3,800 years.  

THE EIFFEL TOWER 
The Eiffel tower was the tallest building in the world when it was completed in 1889.It was built for the world's fair to demonstrate that iron could be as strong as stone while being dramatically lighter.And in fact the wrought-iron tower is twice as tall as the masonry Washington Monument and yet it weighs 70,000 tons less! It is repainted every seven years with 50 tons of dark brown paint.

  

THE EMPIRE STATE BUILDING

The Empire State Building is a 103-story skyscraper located in Midtown Manhattan,New York City,at the intersection of Fifth Avenue and West 34th Street.It has a roof height of 1,250 feet (380 m), and with its antenna spire included, it stands a total of 1,454 feet (443 m) high. Its name is derived from the nickname of New York,the Empire State.It stood as the world's tallest building for nearly 40 years,from its completion in nearly 1931 until the topping out of the original World Trade Center's North Tower in late 1970

SEARS TOWER

The Home Insurance Building called "the father of the skyscraper",the Home Insurance Building,constructed in Chicago in 1885 (and demolished in 1931),was 138 feet tall and 10 stories.It was the first building to effectively employ a supporting skeleton of steel beams and columns,allowing it to have many more windows than traditional masonry structures.

THE PETRONAS TOWERS

In the Petronas Towers,the shape of the floors is based on an eight-point star,common in Malaysian Islamic patterns.The towers have so many windows that window washers take a month to clean each tower!

 

BURJ KHLIFA 

Burj Khalifa,in Dubai,United Arab Emirates,was completed in January 2010 and became the world's tallest building at 2,716 feet (828 meters) and 160 stories.It contains the world's fastest elevators, 20.7 acres of glass,and is expected to use about 250,000 gallons of water per day.