South Korea-The marine-themed Expo 2012 opened in May 2012 for a three-month run in Yeosu,South Korea.The icon of the Expo is Big-O,a landmark constructed to give visitors an insight into the expo's theme,including experience zones hosting large-scale events and cultural performances.

ECA2-a French-based company specialized in creating and producing major events and shows around the world-was in charge of designing the entire Big-O show as well as the O structure.The artistic and technical production of the show was also part of ECA2 mission.

During daytime the Big-O is a giant sculpture that will remain after the Expo as a symbolic landmark.By night,it is the centrepiece of a show that embraces the Expo's themes.

The O itself features a water screen inside the outer rim,which shows films and other videos.The outer rim also produces special effects,such as laser shows.

ECA2's team designed the O as a mysterious object that could have emerged from the ocean itself.It glints in the sunlight like a jewel over the lagoon.Modern materials such as concrete and steel are harmoniously combined to lend the structure an almost organic appearance.

For the Big-O night-time show,the Medialon show control system synchronises hundreds of devices and special effects,creating an immersive show that plunges the audience into the heart of a sensory narrative.

One Medialon Manager V6 PRO show control software allows controlling and synchronizing all the show's lighting,special effects,video and water features.