In Havana, Chinese buses have replaced these big hulking vehicles, which Cubans call Camellos, or camels.
These photos give you an idea of what Camellos look like inside and out. Last year, I believe I saw some Camellos in use in the countryside. I don't know if they've since been phased out there.
Some Cubans dread them because they get so crowded and all kinds of things happen, from fondling to petty theft. Riding the Camellos, they say, is like an R-rated movie because they're full of sex, violence and adult language.
But on the day I took these pictures, the ride was uneventful.