Location: at the north square fountain and west & east entrance
　　Specification: 5m*3m(H)
　　Price: north square: 3,750 USD/unit (double-sided), not more than 16
　　east & west entrance: 2,800 USD/unit(single-sided), not more than 12
　　Recommendation: North square entrance, the main entrance and the venue of opening ceremony, is the largest outdoor passenger pool. It has an open ladder area which is good for image advertising, where only moveable outdoor billboards and landing balloons will be placed.