Visitors flocked to the recently opened Lotte World Tower to take the world's longest and fastest double-decker elevator, dubbed 'Sky Shuttle', in Seoul, on Wednesday.<br />The elevator whisks passengers from the basement to the 121st-floor in one minute, at an average speed of 10 metres (32.8 feet) per second.<br /><br />Video: Ruptly<br />Music: Big Bang Fuzz
