Kung fu legend Bruce Lee's old home in Hong Kong's Kowloon Tong has been demolished to make way for a Chinese studies centre.  Developers said they discovered structural problems in the building that made maintaining it unfeasible. The Yu Pang-lin Charitable Trust, which owns the building, said a mosaic left by Bruce Lee would be retained on a wall outside the mansion, and that four window frames from the two-storey building will be preserved.