Macau

Macau is such an unique place, and as a special administrative region of China it seems even more "special" than Hong Kong. Even though Portuguese now is rarely spoken, the colonial past is still a strong presence. What does surprise me is the scarcity of diesel-powered cars, mostly because when Portugal was still the sovereign power it used to favor diesel cars more than their petrol-powered counterparts. Well, since it's basically an island, would actually make a lot of sense to have most of its fleet running on downsized diesel engines using biodiesel to be made out of some oily seaweed or out of halophyte plants such as the Salicornia genus.