Climbing 10th tallest building in the world for selfie

Four guys from Nanjing climbed to the top of Zifeng tower and posed for selfies on Saturday. Nanjing's Zifeng tower, 89 storeys up and 450 meters tall, is the world’s 10th tallest building. The public, as well as staff working in the tower are puzzled as to how they were able to climb out onto the top. Zifeng tower staff said they will try to improve security and put an end to such dangerous acts, while local police say the four could be punished for disturbing public order.