Top 10 Tallest Buildings in the World

Lotte World Tower stands 555 meters tall and has 123 floors. Its curved glass exterior offers panoramic views of Seoul and the Han River. Inside, there is a luxury hotel, offices, and an observation deck on the 117th–123rd floors.

The skywalk at the top lets brave visitors step onto a glass floor and look straight down. During winter, the tower is often shrouded in fog, making it look as if it floats above the city.