In response to the challenges of the world's densely populated cities, architects have been working for decades to explore the types of tall buildings.


Come learn what the first tallest buildings in each of the 9 countries are:


1. South Africa - Leonardo


At 230 meters tall, the Leonardo Hotel is the tallest building in South Africa, completed in 2019, with a 128-room hotel and 11 floors of commercial office space.


2. United States - One World Trade Center


At 541 meters, One World Trade Center is the main building of the redeveloped World Trade Center complex in New York City's Lower Manhattan, the tallest building in the United States and the tallest in the Western Hemisphere, ranking 6th tallest in the world.


3. UAE - Burj Khalifa


At 828 meters, Burj Khalifa is one of the most famous buildings in the UAE and the tallest freestanding building on earth, and the tallest observation deck in the world.


4. Sri Lanka - Altair Building


Located in Colombo, Sri Lanka, the Altair Building consists of two towers, one of which looks like it is leaning on the other. Completed in 2019, the building has more than 400 luxury apartments and can withstand a magnitude 7 earthquake.


The vertical tower is the tallest building in Sri Lanka by its 240-meter height.


5. Argentina - Alvear Tower


The Alvear Tower, 235 meters high and completed in 2018, is a residential and hotel supertall building located in the upscale Madera district of Buenos Aires, Argentina, and is also the tallest building in Argentina.


6. The tallest building in South America - Torre Costanera


Torre Costanera is 300 meters high, with 62 floors, located in Santiago, the capital of Chile, and was built in 2013.


7. Malaysia - Petronas Twin Towers


The Petronas Twin Towers, also known as the Twin Towers, with a height of 452 meters, are twin supertall towers in Kuala Lumpur, Malaysia.


They were the tallest buildings in the world between 1998 and 2004 and are still the tallest twin towers in the world.


8. Singapore - Guoco Tower


Guoco Tower, also known as Tanjong Pagar Centre, was completed in 2016 and with a height of 290 meters, it is the tallest building in Singapore. It is also the first building in Singapore to exceed the height limit of 280 meters.


9. China - Shanghai Centre Tower


The Shanghai Center Tower is 632 meters tall with 128 floors and was completed in 2015, making it the tallest building in China and ranked in the world.


The building is located in Lujiazui, Pudong, Shanghai, and is the tallest of three adjacent super-tall buildings in Pudong, the other two being Jinmao Tower and Shanghai World Financial Center.