YOU MUST KNOW - World's Tallest Building

Let's take a look at the world's tallest buildings including Lotte World Tower in Seoul, Burj Khalifa in Dubai and the Empire State Building in New York City.

Burj Khalifa - Dubai, United Arab Emirates

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Since its completion in 2010, Burj Khalifa has become the tallest building in the world. Designed by Skidmore architect, Owings & Merrill LLP, the building's height is 2,723 feet (829.8 m) and has 163 floors.

Shanghai Tower – Shanghai, China

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The height of 2,073 feet (632 m), the Shanghai Tower (Right) is the tallest building in China. Its structure has the world's fastest elevator with a speed of 65 feet (20.6 m) per second.

Lotte World Tower - Seoul, South Korea

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The height of 1,820 feet (555 m), Lotte World Tower - opened on April 2, 2017 - is the tallest skyscraper in the country and the fifth highest in the world. It also became the highest glass bottom-bottom observatory at 1,568 feet (478 m). The biggest highlight of this tower is Sky Shuttle, which is the world's tallest and fastest double decker (double decker)

Mecca Royal Clock Tower - Mecca, Saudi Arabia

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Makkah Royal Clock Tower is the third tallest building in the world. The most striking feature - face clock - so large that it can be seen from a distance of 16 miles (25 km). The height of the building is 1,972 feet (601 m).

Ping An Finance Centre – Shenzhen, China

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The building was made by Ping An Insurance, the Ping An Finance Center took six years to complete. This building overtook the KK100 tower which became the tallest building in Shenzhen at 1,965 feet (599 m).

One World Trade Center – New York City, New York, AS

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At an altitude of 1,792 feet (546.2 m), One World Trade Center is the tallest building in the Western Hemisphere. Originally called the Freedom Tower, built on the site of twin towers that destroyed the World Trade Center

Chow Tai Fook Finance Centre – Guangzhou, China

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Chow Tai Fook Finance Center (Right) is a tower consisting of offices, hotels, apartments and shopping centers. The building is 1,739 ft (530 m) high and is part of the twin towers of Guangzhou Twin Tower along with the International Financial Center (Left).

TAIPEI 101 – Taipei, Taiwan

TAIPEI 101 – Taipei, Taiwan

Taipei 101 was the tallest building in the world from 2004 to 2007, before Burj Khalifa overtook the title. The award-winning Skyscraper Emporis 2004, Taipei 101 was named after its location and the number of floors in the building - 101. It is 1,667 feet (508 m) tall.

Shanghai World Financial Centre – Shanghai, China

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Shanghai World Financial Center, also known as a bottle opener because of its shape, is 1,622 feet (494.3 m) tall and measures only 46 feet (14 m) less than Taipei 101.