I visited this WHS in October/November 2013 and spent 3 days here. There are so many historic places to discover and not rushing to catch the ferry/flight to another place helped a great deal in appreciating the OUV of the series of sites in this inscription with much less crowds (especially in the morning and late afternoon/evening). The highlight of my trip was the A-ma temple apart from the obvious St. Paul Ruins and Guia lighthouse fort. There are Unesco signs everywhere making it very easy to visit on foot. Apart from the historic centre, Macao is a really cool place to visit being aslo a modern city in the making (construction frenzy!) and a gambling mecca!