Lotte World Tower Facts for Kids

Quick facts for kids Lotte World Tower 롯데월드타워
The Lotte World Tower in 2019.
Former names	Two Lotte World Tower Lotte World Premium Tower
Alternative names	Lotte Jamsil Super Tower
Record height
Tallest in the OECD countries since 2017
Preceded by	One World Trade Center
General information
Status	Complete
Type	Office, Hotel, Residential, retail
Location	Sincheon-dong, Songpa, Seoul, South Korea
Coordinates	37°30′45″N 127°06′10″E / 37.51250°N 127.10278°E / 37.51250; 127.10278
Groundbreaking	May 2009
Construction started	January 22, 2010
Completed	December 22, 2016
Opening	April 3, 2017
Height
Architectural	554.5 m (1,819 ft)
Tip	610.7 metres (2,004 ft)
Top floor	497.6 m (1,633 ft)
Technical details
Floor count	123 above ground, 6 below ground
Floor area	304,081 m² (3,273,100 sq ft)
Design and construction
Architect	Kohn Pedersen Fox
Developer	Lotte Engineering & Construction
Engineer	Syska Hennessy Group (MEP)
Structural engineer	Leslie E. Robertson Associates

The Lotte World Tower (Hangul: 롯데월드타워) is a super tall skyscraper in Seoul, South Korea. It stands about 555-metre (1,821 ft) (1,821 feet) high. This amazing building has 123 floors above ground.

It opened its doors to the public on April 3, 2017. Today, it is the tallest building in South Korea. It is also one of the tallest buildings in the world.

Building History and Opening
Tower Design and Height
- How Tall is the Tower?
- A Landmark Building
What's Inside the Tower?
- Main Areas and Facilities
Safety and Events
- Climbing the Tower
Gallery
See also

Building History and Opening

The idea for the Lotte World Tower began many years ago. After 13 years of planning, the government finally approved its construction in November 2010. Work on the building started soon after in March.

On New Year's Eve in 2016, the tower's LED lights showed the number "2016". This was a fun way to celebrate the end of the year.

The tower officially opened on April 3, 2017. To mark this big event, Lotte shot off a spectacular fireworks display.

On January 1, 2018, Lotte celebrated New Year's Day again. They had another fireworks show combined with a laser light display. This celebration also honored the 2018 PyeongChang Winter Olympics.

Tower Design and Height

The Lotte World Tower has a unique and modern design. It is shaped like a tall, slender cone. Its sides curve gently outwards.

How Tall is the Tower?

The tower's roof structure was finished on March 17, 2016. This roof is shaped like a lantern and uses a special design called a Diagrid. It is about 120 metres (390 ft) (394 feet) tall. This part covers floors 107 to 123.

Building the roof needed about 3,000 tons of steel. Workers used a very precise crane and GPS tools. The roof is built to be very strong. It can stand up to strong winds and even big earthquakes.

A Landmark Building

The Lotte World Tower is a famous landmark in Seoul. It was the first building in Korea to have over 100 floors. When it was finished, it was one of the tallest towers in the world. It was also the tallest building in countries that are part of the OECD.

The outside of the tower is made of light-colored glass. This design was inspired by traditional Korean ceramics. It also has pretty metal details.

What's Inside the Tower?

The Lotte World Tower is home to many different things. It has offices, a fancy hotel, homes, and shops.

Main Areas and Facilities

One of the most exciting parts is Seoul Sky. This is an observation deck located on floors 117 to 123.

The 117th floor is where you enter and enjoy the views.
On the 118th floor, you can find the Sky Friendly Cafe. There is also a Sky Terrace for outdoor views.
The 119th floor has a Photozone where you can take pictures.
The Seoul Sky Cafe is on the 122nd floor.
The 123 Lounge is a special bar on the 123rd floor.

Seoul Sky offers amazing views of the city. It even has a glass floor and telescopes. The glass floor at Seoul Sky was the highest glass floor observatory when the tower was completed.

Here is a quick look at what's on different floors:

Floors	Use
117th–123rd	Observation deck (SEOUL SKY)
105th–114th	Private offices
76th–101st	Lotte Hotel (SIGNIEL SEOUL)
42nd–71st	Homes (SIGNIEL RESIDENCES)
14th–38th	Prime offices
5th–12th	Shops and facilities (Podium)
1st–2nd	Main lobby
B1–B2	Observation deck entrance
B3–B6	Parking lot

Safety and Events

During the tower's construction, there were some safety concerns. The mall and cinema at the base of the tower had to close for a short time. This was because of a small water leak from an aquarium. However, experts checked the building. They found these issues did not affect the tower's main structure. The mall and cinema later reopened safely.

Climbing the Tower

In 2016, two Russian and Ukrainian explorers climbed the tower while it was still being built. They were called Vadim Makhorov and Vitaly Raskalov. They shared a video of their climb online. This video became very popular around the world. After this, Lotte World Tower put up posters of them. They were not allowed back into the building.