(CNN) The Shanghai Tower may be the world's second tallest building. In the Southern Chinese city of Guangzhou, home to 8.25 million, Hitachi this summer unveiled its fastest elevator in Guangzhou's tallest tower, the CTF, which stands at 1,739 feet tall. Reach 1km into the sky, the Jeddah Tower in Saudi Arabia will be the world's tallest building when completed in 2019. Photos: The world's tallest buildings The Tower, Dubai, United Arab Emirates – A new megatall skyscraper will dominate the Dubai skyline. Height: 451.9m (1483ft)Floors: 88Architect: Cesar Pelli Hide Caption 17 of 24 Photos: The world's tallest buildings Zifeng Tower, Nanjing, China – The architects behind the Burj Khalifa are also responsible for the world's tenth tallest building.

Source: CNN October 06, 2016 01:00 UTC