Interesting facts about Sydney Harbour Bridge and Opera House

Sydney Harbour Bridge

The Sydney Harbour Bridge, also affectionately known as the ‘Coathanger’, was opened on March 19th 1932 by Premier Jack Lang, after eight years of construction.t is the sixth longest spanning-arch bridge in the world and the tallest steel arch bridge, measuring 134 meters (440 feet) from top to water level.The arch can rise or fall as much as 18 centimeters (7 inches) due to heating and cooling.At each end of the arch stands a pair of 89 meters (292 feet) high concrete pylons, faced with granite.The granite face of the four 89 meter (292 feet)  high pylons of the bridge used around 17,000 cubic meters (247,202 cubic feet) of granite blocks quarried near the historic town of Moruya and transported to Sydney 300 kilometers north using ships specially built for such purpose.Sydney Harbour Bridge was constructed with approximately 6 million steel rivets. An estimated 272,000 liters (72,000 gallons) of paint were used to paint the bridge.One of the most interesting facts about the Sydney Harbour Bridge is the reason behind the gray color of the paint. When it came time to paint the bridge after construction, the quantity of paint needed could only be found in the color gray.Sydney Harbour bridge is famous for its extravagant fire works on New Years and other special occasions. People all around the world watch them live or on screen.

Sydney Opera House

History of Sydney opera house is saturated with great performances, but this one blew everyone’s mind – In 1960, Paul Robeson climbed the scaffolding to sing Old Man River to the construction workers, becoming the first artist to perform at the opera house.It was formally opened on October 20, 1973 by Queen Elizabeth II – it took 14 years from competition to completion.The colored glass used in the building was order by Boussois-Souchon-Neuvesel in France and the shade is unique. There was 6,223 sq m of glass in the original building.The highest point of the roof reached 67 meters above sea level equivalent to the height of a 22-story building.The concrete ceiling beams are made in three different shapes – T, Y and U.This eliminates the need for supporting columns.Sydney Opera House is one of the only buildings in the world to have had an opera written about it.

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