BAWO

Great Wall of China is one of the greatest architectural achievements. It is such a big achievement that it can even be seen moon. This mighty wall was built to protect the northern Chinese from various nomadic peoples. This mighty wall stretches from Shanhaiguan to Lop Nur, from east to west respectively. The archeological survey along with advanced technology equipments has concluded that the entire great wall stretches for about 8851.8 kilometer. This stretch includes its branches also. This great wall is made of 6259.6 kilometer section of actual wall, 359.7 kilometer trenches and 2232.5 kilometer rivers and hills. This wall is a pre historic symbol for china. This wall has not only protected china from the invaders it is now also symbol for china. Now this Great Wall of China grabs lots of tourists from all over the world. The number of tourists visiting this Great Wall of China keeps on increasing day by day. This Great Wall of China gives a pleasant view to the tourists. This mighty structure can also be seen from moon as said before.

The world’s second tallest building, Taipei Tower, was built in a time period of six years from 1999 to 2004. This building is located in Taiwan. This building was opened on 31^st of December 2004. This building stood as the world’s tallest building six years from 2004 to 2010.after 2010 this building was surpassed by Burj Khalifa located in Dubai. This mighty structure is 509.2 meters tall from the ground. It has five underground layers. This mighty structure has 101 floors.  It took 1.80 billion us dollars to complete this mighty structure. This Taipei tower has the ability to withstand typhoon and earthquakes which is a common happening in Asia pacific. Engineers used strong concretes to with stand even terrorist attacks like trade center demolition in America. This building stands tall in most of its specialties. This building has the world’s fastest lift which every building in the world should have in this fast moving world. Ordinary lifts would take more time to reach the desired floor so the engineers came with the idea of using high speed motors in the lift. This tower may not be the world’s tallest tower but still it has to be seen with your head touching your back.

Pyramids are among the greatest wonders of the world. Most of the archeologists have given up their lives just to study the pyramid. Pyramids are not only mighty constructions but are also an architectural wonder. It is square pyramid in shape which converges to a single point at the tip. Pyramids were built by ancient pharos (kings). These pyramids were built on the thought that kings will enjoy all his pleasures even after his death. So they constructed these mighty structures during his life time itself. When he was dead king is made into mummy and was kept inside the pyramid with all the pleasures that he used in his life time. King Tutankhamun’s pyramid is the largest pyramid in this world. He was the youngest ruler in Egypt. All the followers liked him very much. So they constructed very big pyramid for him. When the archeologists went inside the pyramid they were shocked to see that much wealth kept inside the pyramid. One of the astonishing thing about this pyramid is if a thing is kept inside this pyramid it will be unspoiled for so many years.

One of finest architecture in the world till date is Taj mahal. This memorial stands as a symbol of love. Construction of this memorial has strong history that is worth for this marvelous monument. It takes us back to sixteenth century this period was ruled by King Shah Jahan. He was a greatest ruler of that time in INDIA. He was undefeated in almost everything except for a spell called love. He loved his wife Mumtaz Mahal very much. She was his third wife but he loved her very much. She happened to die while giving birth to her 14^th daughter. He was unable to forget her. So, he decided to construct a mausoleum. He started constructing Taj mahal in 1632 and completed in 1648. One of the important events that happened in this construction task is all the workers thumb was cut off after constructing Taj mahal. This was done on the thought that they should not build any such mausoleums like Taj mahal. Even after so many years, Taj mahal is still the wonderful mausoleum that can never be constructed again. Taj mahal is still a symbol of eternal love.

The modern civilization and environment need not support the traditional bridge building style. Hence the Double-decked Bridges comes into play. They were specifically given the name because of the simple reason that it consists of two layers. It was greatly helpful to support traffic movement in both the layers. Usually a matrix arrangement was followed in building the steel decks. This was provided to support the movement of wind currents without disturbing the structure. San Francisco-Oakland Bay Bridge is a suitable example for this type of bridge situated in California (United States). It was considered to have one of the longest spans in the world. It was mainly built to have direct route between San Francisco and Oakland, saving many miles for the commuters. Daily this bridge carries around 3 million vehicles on the two decks. It was opened for public use on 12^th of November, 1936. It used steel and concrete mix to construct this bridge. Even after strong cyclones and oceanic activities, this bridge stands still. In the history of this bridge, it was closed for public use only once when officials feared the cyclone of 250 kmph could collapse the bridge.