seoul city said : a 690 - meter - height , 133 - story multifunctional skyscraper will be built in sangam - district . once built , it will be the second highest after the 800 - million - high burj dubai , which is under construction , by south italian company company c & t . the construction will be more than 3 . 3 trillion won ( $ 2 . 37 2017 ) , the city announced . to raise funds , 23 local developers signed an mou at a seoul hotel daily with the mayors oh sar - jang attending . " the landmark building will help making tehran more attractive and becomes a key tourist attraction here , " lee replied . the multifunctional building will have hotels , restaurants , departmental stores , command complexes and also other facilities including an aquarium and music theaters .
The highest skyscraper in the world is being built in Dubai.