Since Elisha Graves Otis invented the first safety elevator more than 160 years ago, Otis has evolved to include passenger, freight and service units, and progressed from wooden interiors to all-glass cabs — and almost anything else necessary to meet a customer’s needs.

Otis Elevator Korea added to this evolution in 2017 with the installation of the world’s longest double-deck elevator in the Lotte World Tower in Seoul. The total installation includes 30 elevators — 11 SkyRise® units (including two double-deck elevators) and 19 Gen2® elevators, along with 19 escalators, in the country’s tallest vertical structure at 555 m.

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The traction machine is carefully lowered into place.