N Seoul Tower
Elevation: 479.7m/1.574ft
Namsan: 243.0m/797ft (Up to the construction point of the N Seoul Tower)
N Seoul Tower: 236.7m/777ft
Safe wind speed: Safe even in strong winds of about 56m/s
Safety inspections:
-The public acknowledgement of absolute perfection resulted after safety inspections by international approval organ on May 21, 1973
-Safety inspections are carried out more than once every year
-Safety was confirmed after safety inspections in January