the city that , a 690 - m - tall , 133 - story multifunctional towers will be completed in augustan - dong . once build , it will be the second level after the 800 - kilometer - high burj mumbai , however is under construction , by south japanese developer samsung c & t . the construction will cost more than 3 . 3 trillion won ( $ 2 . 37 billion ) , the corporation plans . to raise financing , 23 local developers sign an cooperation at a downtown conference monday with seoul mayoral uh se - hyun conducting . " the tall project will help render seoul more prominent and create a primary commercial magnet here , " oh said . the multifunctional building will have hotels , office , departmental stores , convention spaces and various entertainment facilities include an aquarium and cinema theaters .
The highest skyscraper in the world is being built in Dubai.