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10. Taipei 101 (Taipei): In the capital of Taiwan, Taipei 101 is rich in symbolism with the number 100 representing perfection and the extra "1" representing even further innovation. Click through the gallery for photos of nine other buildings that are even taller:
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9. CITIC Tower (Beijing): Beijing's tallest building is notable not only for its height but also its dramatic curving form that leaves the bottom and top wider than the middle.
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8. Tianjin CTF Finance Centre (Tianjin): This building absolutely dominates the night skyline in Tianjin, a coastal city in China of more than 15 million. It was completed in 2018.
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7. Guangzhou CTF Finance Centre (Guangzhou): The building is so tall (530 meters) that it pokes above a sea of heavy clouds in this part of rainy south China.
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6. One World Trade Center (New York City): New York City is rich in skyscrapers, but One World Trade Center easily rises above them all. Another building rich in symbolism, its height is 1,776 feet.
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5. Lotte World Tower (Seoul): This dwarfs the other buildings in Seoul and offers stunning views of South Korea's capital. The design is inspired by traditional Korean pottery.
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4. Ping An IFC (Shenzhen): This skyscraper is the perfect symbol for Shenzhen's pivot from its legacy as ground zero for China's manufacturing boom into a center for research, development and advanced technology.
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3. Mecca Royal Hotel Clock Tower (Mecca): This is a view of the Abraj Al-Bait Towers (as it's also known) from the Grand Mosque in the holy Muslim city of Mecca, Saudi Arabia.
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2. Shanghai Tower (Shanghai): The Shanghai Tower, lit up in blue, is notable not only for its dizzying height (the tallest building in China) but for its green sustainability.
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1. Burj Khalifa (Dubai): General view of Burj Khalifa during a heavy fog in Dubai gives you an idea of this building's current dominance. At 828 meters (2,717 feet), it's world's tallest building by almost 200 meters.
CNN  — 

Rising upward more than a century now, skyscrapers have emerged to become the symbol of urban style and might. And what started in the late 1800s continues dynamically into the 21st century as we build higher and higher.

Why do we do it? Professor Valery Augustin of the USC School of Architecture and principal at DNA Architecture + Design says it could come down to one word: “Ego.”

“Skyscrapers are aspirational,” Augustin told CNN. “Humans have always been fascinated by height. Whether it be Icarus or the Wright Brothers, we have always sought to escape the bonds of the gravity. Skyscrapers let us fly if only briefly.”

And then there are the less lofty reasons for going taller – such as maximizing land value and ever-improving technology and engineering capabilities, Augustin said.

But have we reached the limits of how high we can build? Augustin doesn’t think so.

“Engineers and architects are only now beginning to experiment with superlight, superstrong materials composites, graphene come to mind) that may allow us to keep pushing the envelope.”

While we wait for the next record-breaker to come along, these are the 10 tallest completed buildings in the world by height of their architectural tops, which includes spires but not structures such as antennae or flagpoles:

10. Taipei 101

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Towering over the capital city, Taipei 101 once held the title of world's tallest building.

Location: Taipei
Height: 508 meters (1,667 feet) | Floors: 101
Public observatory? Yes | Completed: 2004

Still the tallest building in Taiwan, it held the “tallest” title for the world from 2004 until 2010. While nine other skyscrapers since then have surpassed it, Taipei 101 remains a stunning spectacle.

“This building is notable because it essentially stands alone as there are no towers of similar size nearby,” Augustin said.

Evoking the image of a Chinese pagoda, it’s built to withstand the strong earthquakes and typhoons that can hit the island.

9. CITIC Tower

Location: Beijing
Height: 527.7 meters (1,731 feet) | Floors: 109
Public observatory? Yes | Completed: 2018

Also called China Zun, the No. 9 skyscraper has a memorable form with the top and bottom of the structure wider than the middle floors. The shape is patterned after an ancient Chinese ritual vessel (the “zun”).

It’s the tallest building in Beijing. Dedicated to office use, it has 101 elevators.

Augustin said it was “one of the more elegant towers” of the top 10 list. “The tapered middle section evokes the appearance of a slender vase rising into the sky.”

8. Tianjin CTF Finance Centre

Location: Tianjin
Height: 530 meters (1,739 feet) | Floors: 96
Public observatory? No | Completed: 2019

Tianjin CTF Financial Centre outreaches its nearby capital city rival by a relatively small measure – just a couple of meters.

The facade of the mixed-use building (office, hotel and serviced apartments) has gently undulating curves that help minimize wind force on the structure.

Asia, and most particularly China, dominates this list, with cities and buildings many in the West may know little or nothing about.

“I would offer that skyscrapers are a symbol of economic power. And as such, they represent Asia’s ascendancy as a dominant force in the world economy,” Augustin said.

7. Guangzhou CTF Finance Centre

Location: Guangzhou
Height: 530 meters (1,739 feet) | Floors: 112
Public observatory? No | Completed: 2016

Yet another entry from dominant China, the Guangzhou CTF Finance Centre is in the bustling southern port city of Guangzhou.

Overlooking the Pearl River, the building’s distinctive features include four setbacks, which allow for green sky terraces and skylights. And for now, it claims the title of having the world’s fastest elevator.

Interestingly, the architectural height of the building matches its counterpart in Tianjin. But Guangzhou CTF has a higher occupied height at 495.5 meters while the CTF building in Tianjin has an occupied height of 439.4 meters.

6. One World Trade Center

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One World Trade Center, the tallest building in the Western Hemisphere, is seen behind the Manhattan and Brooklyn bridges.

Location: New York City
Height: 541.3 meters (1,776 feet) | Floors: 104
Public observatory? Yes | Completed: 2014

Once the skyscraper capital of the world, New York has the lone Western Hemisphere entry on the current top 10 list.

One World Trade Center replaced the Twin Towers destroyed in the 9/11 attacks, and the footprint of its cubic base is the same of the original two towers.

For Americans, it’s a soaring symbol of resilience and has sleeker design than its boxy predecessors. And its height – 1,776 feet for the year the Declaration of Independence was signed – is no coincidence.

5. Lotte World Tower

Location: Seoul
Height: 555 meters (1,821 feet) | Floors: 123
Public observatory? Yes | Completed: 2017

China doesn’t have a total lock on skyscraper superlatives in Asia, with South Korea’s Lotte World Tower coming in at No. 5.

Skyscrapercenter.com notes that Lotte’s design takes “inspiration from traditional Korean art forms.”

Industrious Seoul has put the skyscraper to good use with retail, luxury hotel, apartment and office space. It even has a concert hall and rooftop cafe.

It’s also served as the launching pad for a dramatic fireworks show.

4. Ping An Finance Center

Location: Shenzhen
Height: 599.1 meters (1,965 feet) | Floors: 115
Public observatory? Yes | Completed: 2017

Shenzhen, another economic powerhouse city in southern China near Hong Kong, makes its mark with the Ping An Finance Center.

It’s a very slender building (its width-to-height aspect ratio is 1:10) with a facade of stainless steel and glass, according to TheTowerInfo.com.

This is “one of the better of the bunch,” Augustin said. “The exterior provides notable structural expression as it rises from base to top.”

3. Makkah Royal Clock Tower

Location: Mecca
Height: 601 meters (1,972 feet) | Floors: 120
Public observatory? Yes | Completed: 2012

The Makkah Royal Clock Tower is the most distinctive structure in the Top 10, and it’s the first of two buildings from the Middle East in the round-up.

Built in the busy center of Mecca next to the Grand Mosque, the tower offers a place for devout Muslims that make the Hajj journey.

“True to its name, four colossal clock faces are mounted near the top of the tower. These clocks hold the record for both the largest and highest in the world,” according to Skyscrapercenter.com.

2. Shanghai Tower

Connie Zhou/courtesy gensler
Shanghai Tower soars above an already impressive cityscape.

Location: Shanghai
Height: 632 meters (2,073 feet) | Floors: 126
Public observatory? Yes | Completed: 2015

While China dominates the list, no city in China itself has a monopoly. And it should probably come as no surprise that prosperous Shanghai has the tallest building in China and second tallest in the world.

The building is visually arresting with its twisting, spiral shape headed into the sky. And that look isn’t just for show – it helps the building better withstand winds than a traditional rectangular structure.

Shanghai Tower is host to retail shops, restaurants, offices and hotels.

“Architecturally, this one is the best of the bunch,” Augustin said. “Elegant and inventive.”

1. Burj Khalifa

Location: Dubai
Height: 828 meters (2,716 feet) | Floors: 163
Public observatory? Yes | Completed: 2010

Like Dubai itself, the Burj Khalifa is setting the pace in the early part of the 21st century.

Blending Islamic influences with modern, energy-saving features, Burj Khalifa “redefined what is possible in the design and engineering of supertall buildings,” according to Skyscraper.com. It also connects to Dubai’s mass transit system, making it both beautiful and practical.

Augustin called it “exhilarating yet frightening at the same time. Not significant architecturally but perhaps notable as a testament to the will and ingenuity of humankind.”

Towers to come

The top 10 skyscrapers might not be able to hold onto their statuses as tallest for too long.

New projects are already underway, including Jeddah Tower in Saudi Arabia, which aims for a height of 1,000 meters. Completed as planned, it would immediately claim the No. 1 spot.

And Goldin Finance 117 (another Tianjin, China, effort) is scheduled to be finished in 2020. At 596.6 meters, it would claim the No. 5 spot and knock Taipei 101 off the list.

The rankings for this story are from the Council on Tall Buildings and Urban Habitat and can be found on Skyscrapercenter.com.