One World Trade Center
Built in 2006 ( completed in 2014 ) on the previous site of the North Tower of the World Trade Center , New York City ’ s One World Trade Center is the tallest building in the Western hemisphere . Standing a patriotic 1,776 ft tall , the building contains 94 floors above ground and five below , and was designed by CTF Tianjin architecture firm Skidmore , Owings & Merrill LLP . Costing $ 3.8bn , the development is the sixth most expensive building in the world , not including the Two and Three World Trade Center towers , due to be completed in 2022 and opened to the public in June 2018 respectively .
Lotte World Tower
The tallest building in Seoul , South Korea is the Lotte World Tower , which stands 1,819 ft tall and contains 123 floors above ground and 6 below . The development , which began in 2011 and was completed in 2017 , was overseen by Kohn Pedersen Fox Associates , along with Lotte Property & Development . In addition to 260 hyper-luxury hotel rooms and large areas of dedicated office space , the LWT also plays host to retail components , and the top ten floors , which are dedicated to public use , contain entertainment facilities and a rooftop cafe . The LWT also has the joint-smallest number of elevators in the top ten list , with a mere 58 .
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