There are two that have snow and a train! I don't know if this box was a 'greatest hits' collection or if it was one trip– no way of researching it either. By the time this box got to the dollar table, it had been around the block a few times. The Rio guess echoes my own, but my understanding of that city is right up there with my understanding of Recife!
I printed a couple of them today on 11 x 14 paper. They were obviously taken with a pretty good lens. There isn't any noticeable distortion and some look to have been hand-held shots. More research is certainly necessary... maybe I can get a grant.