dongdaemon hello apm building denko editionbasic information Subway line 2,4A street vision installed near Dongdaemun History and Culture Park Station, which is used as a transfer station for Lines and Lines 5! The area is packed with large shopping malls and is visited by many foreign tourists. Installation location 253, Jangchungdan ro, Jung gu, Seoul 253 Operating hours 7: 00 23: 00 (16 hours) standard W13 x H17. 2Mm number of seconds 20 seconds 30 seconds audio none Number of broadcasts