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World's 10 Most Impressive Constructions

We humans have always aspired to build tall and build great. And we have been truly at it for as long as the construction industry existed - well back at the time of pyramids. Today, we will look at the constructions that awe and inspire us today. Here are the world's 10 most impressive constructions.

1. Great Pyramid of Giza

Great Pyramid of Giza

One of the seven wonders of the world, the Great Pyramid of Giza is the largest among the three legendary pyramids at the place. It was the tallest construction in the world for 3,800 years - take a moment to think how much that means.

Many experts estimate that 5.5 million tonnes of limestone, 500,000 tonnes of mortar and 8,000 tonnes of imported granite were used to make it. Experts also estimate that it would cost around $5 billion to build a replica today.

2. Great Wall of China

Great Wall of China

Another member of the seven ancient world wonders, the Great Wall of China still remains the longest wall in the world and one of the most popular tourist attractions in the world. With a history of more than 2,000 years, The Great Wall stretches from Dandong in the east of the country to Lop Lake in the west.

All in all, the great wall of China is 13,171 miles long, counting all its branches and unconnected parts. It is very hard to say how much it would cost to build a copy of the Wall today - but experts put the estimate somewhere around 13 billion USD. And some say it could take five times as much as that.

3. The Colosseum

The  Colosseum

The world's largest amphitheater to date is one of the greatest architectural feats in the ancient world as well. The 2,000 year old sports complex is so recognizable that it has become a veritable icon for its hosting city - Rome.

Estimated to seat 50,000 and rumored to fit 80,000 people inside, the huge structure is one of the greatest cultural tourist attractions in the world. Sadly, it has collapsed partially now, giving it the signature lopsided look.

4. Brooklyn Bridge

Brooklyn Bridge

The Brooklyn Bridge enjoys the reputation of being the first suspension bridge in the world, and it was a marvel of engineering at the time. Which would be as far back as 1883! Spanning the East River, the Brooklyn Bridge connects Manhattan to the borough of Brooklyn.

The bridge was designed and completed by two generations of engineers, John August Roebling and his son Washington Roebling. It was originally called the New York and Brooklyn Bridge, costing around 15 million USD to build at the time.

5. Itaipu Dam

Itaipu Dam

It would be hard to understand the size of this huge dam unless you see it from air. Stopping the mighty Parana river in its track, there lies the Itaipu Dam on the border of Paraguay and Brazil. It is the world's largest river dam and houses the biggest hydroelectric power plant in the world.

This mega-dam produces more hydroelectric energy than any other dam in the world ? measuring in at an immense 103,098,366-megawatt-hour (MWh). The energy produced by the dam is split evenly between Paraguay and Brazil.

6. Hoover Dam

Hoover Dam

The second famous dam on our world's 10 most impressive construction list is the Hoover Dam. It was constructed during the Great Depression, in the Black Canyon on the Colorado River. The dam impounds the greatest inland water reservoir in the US - the Lake Mead.

The Hoover Dam project was so large that it created several small temporary towns in the vicinity, some of which still remain in some capacity. The dam cost the equivalent of over $660 million to build and was completed in five years, two years ahead of its schedule.

7. Golden Gate Bridge

Golden Gate Bridge

The iconic Golden Gate Bridge would surely show up on most of the modern world wonder list, should anyone make one these days. Spanning the Golden Gate strait for a full whopping mile, it connects the city of San Francisco with Marin County, carrying two highways on its back.

The 27 million dollar project is a mile-long suspension bridge - one of the most beautiful bridges by the world, according to the hordes of tourists who visit here. For almost three decades after its opening in 1937, the Golden Gate Bridge remained the longest bridge in the world.

8. English Channel Tunnel

 English Channel Tunnel

Instead of focusing on building above, the British and the French dug deep underground and shook hands in the middle of the English Channel Tunnel. From the shore of Kent in the UK with Pas-de-Calais in France, the tunnel connects two nations, two economies, and two cultures.

The Tunnel has the longest undersea portion of any tunnel in the world, at 23.5 miles (37.9km). At its deepest point, it is 75 metres (250ft) below the sea bed and 115m (380ft) below sea level. It is designed to carry high-speed Eurostar passenger trains, international goods trains and a shuttle for road vehicles, making it the largest transport system of its kind in the entire world.

9. Burj Khalifa

 Burj  Khalifa

Standing 830 meters tall, the Burj Khalifa towers over any other structure in the world, enjoying being the tallest manmade structure ever. The building’s incredibly tall design inspired the creation of the ‘buttressed core’, an engineering structural system with a hexagonal core which helps to support higher buildings than ever before.

The supertall skyscraper cost 1.5 billion USD to construct, much of which was supplied by the ruler of Dubai, after whom the building is named. It is one the most featured buildings in modern film culture, appearing in several international blockbusters.

10. Lake Pontchartrain Causeway

Lake Pontchartrain Causeway

When you talk about the longest bridge of the world, this lesser known but well built bridge has to be mentioned, because, so far the Lake Pontchartrain Bridge is the single longest continuous stretch of bridge in the world.

Spanning the whole width of the Lake, the Causeway is 38.35 kilometers long (23.83 miles). Its construction was finished in 1959, which was done by means of 9,500 pilings. The strong bridge has withstood several minor and major hurricanes robustly.

World's 10 Most Impressive Constructions