The 123-story Lotte World Tower may not be the tallest building in the world—it's in fifth place-but it's got a few record-breaking statistics up its sleeve.
More info: bloomberg.com
Inside The World's Newest Mega-Skyscraper
After almost seven years of planning and 4 trillion won ($3.6 billion) in spending
The tower is twice the height of its nearest Seoul rival and is the tallest building in South Korea
If you're feeling queasy, don't look down! The glass-floor observation deck on the 118th floor gives visitors a bird's eye view of the city
A tunnel carries visitors to the observation deck.
The timing's not great, however.
Other facilities at the site include a spectacular concert hall with seating for 2,000 people, an aquarium, cinema and food hall.
The Lotte World amusement park as seen from the 102nd floor of the Lotte World Tower, during construction.
From up in the air to under water.
Lotte World Tower celebrate its opening with a fireworks show on April 2.
