Photo taken on Aug 12, 2013 shows a residential building with a rocky style villa on its roof, in Haidian District of Beijing. A resident in the building has spent years to build a huge villa on top of a 26-storey building in Beijing. His neighbors have complained about this oddity covering over 1,000 square meters, fearing its weight may cause structural collapse. Local bureau of city administration attempted to investigate the allegedly illegal construction, but the owner hasn't shown up so far. [Photo/Xinhua]