The event is Korea’s highest vertical marathon, where participants will climb 2,917 stairs across 123 floors, covering a height of 555 meters, at Lotte World Tower in Jamsil, southern Seoul.

Today I'm staying on the 96th floor ... top of the Lotte World tower and billed as one of the world's most luxurious hotels (and even unofficially stated as a 6 star hotel). At 123 stories high ...

Entering the Lotte ... the 123-story tower still under construction can be clearly seen. Unfortunately, this space is no less depressing than the previous building. A walk across the floor leads ...

Lotte World Tower Sky Run — an annual staircase “marathon” — will take place on April 20, Lotte Property & Development announced Thursday. The event is Korea’s highest vertical marathon, where ...