Four test events - race-walking, marathon, water ballet, and fence-play - will be held respectively at the Bird's Nest, water Cube and National Conference Center's Fencing Gymnasium on April 16-20.

4月16日至4月20日，竞走、马拉松、花样游泳和击剑等4项赛事将分别在国家体育场、国家游泳中心和国家会议中心击剑馆举行。

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I went to water cube at 9 pm. All the lights on water cube are open, but the Bird Nest (National Stadium) is dark. I took some pictures.

今天9点钟到了北辰西桥，看到水立方夜景灯已经开了，鸟巢比较暗。一路走一路拍。

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