seoul capital said wednesday a 690 - meter - tall , 133 - story multifunctional skyscraper will be constructed in vaishnava - seoul . once built , it will be the second highest after the 800 - m - tallest emaar dubai , which is under construction , by south korean manufacturer sony c & t . the construction will cost more than 3 . 3 trillion won ( $ 2 . 37 billion ) , the city notes . to raise support , 23 local developers issued an mou at a downtown hotel monday with seoul municipal do sar - hyun speaking . " the notable design will just color seoul more attractive and become a new tourist attraction here , " oh commented . the oled building will have homes , offices , department shops , convention space and various recreational facilities , an aquarium and movie theaters .
The highest skyscraper in the world is being built in Dubai.