In Melbourne, the Chinatown was where street signage was the most prominent. A cherry picker was there putting up a new sign. It's as if the heritage building that they were applying it to would change function with it. Such a programme is interchangable as different uses and people are injected into architecture. Same for the Imperial Building (which is talked about in this post about urban connectivity) - the ROXY sign on Fort Lane signals the bar on the rooftop (which apparently might be closed now?), the name Roxy coming from the theatre that used to be in that old building. Architecture is constantly repurposed - churches turn into bathhouses, theatres into rock climbing walls (which is what happened to the Capitol Theatre).