I’ll add that the metro is efficient and clean by international standards, in case any readers think there was an implied “...for South America” at the end of t

I’ll add that the metro is efficient and clean by international standards, in case any readers think there was an implied “...for South America” at the end of that. It was cleaner, better maintained and more accessible to people with disabilities than any metro system I’ve used in the US, aside from _maybe_ the density of stations in NY.