<P> The world 's tallest artificial structure is the 829.8 m ( 2,722 ft ) tall Burj Khalifa in Dubai ( of the United Arab Emirates ) . The building gained the official title of `` Tallest Building in the World '' and the tallest self supported structure at its opening on January 9 , 2010 . The second tallest self - supporting structure and the tallest tower is the Tokyo Skytree . The tallest guyed structure is the KVLY - TV mast . </P>
<P> The world 's tallest artificial structure is the 829.8 m ( 2,722 ft ) tall Burj Khalifa in Dubai ( of the United Arab Emirates ) . The building gained the official title of `` Tallest Building in the World '' and the tallest self supported structure at its opening on January 9 , 2010 . The second tallest self - supporting structure and the tallest tower is the Tokyo Skytree . The tallest guyed structure is the KVLY - TV mast . </P>
what country has the tallest building in the world
what country has the tallest building in the world
United Arab Emirates
United Arab Emirates