Antibes is 20 minutes from Nice by train. Its old town is amazing — dark, twisty, under-and-over streets and archways. This part is separated from the sea by a frankly intimidating stone wall. From the Port Vauban (home to multi-million dollar yachts and sailboats), all you can see of the city is the Musee Picasso, because its in a castle at the original town’s highest point. It’s very much a seaside resort, summery place.
Macau was, until 1999, a colony of Portugal. Macau is in — more or less — 2 parts: the Peninsula, which contain the UNESCO World Heritage Site, the Historic Centre of Macau, and then there are the islands, which contain, Taipai, Cologne and Cotai.
The Portuguese built TWO major military fortresses while occupying Macau — the Fortaleza do Monte, and the Guia Fortress.