I was captivated by these images from an 1899 expedition. Aside from the unpaved streets and the absence of cars and converted commercial storefronts, the streetscape looks a lot like today.
Maybe someone recognizes the locations in these photos?
You can see the full collection of images from the Allison V. Armour Expedition on The Commons. The photo locations aren't all that well-described, so it can be hard to tell if they're from Mérida or some other Yucatán site, or somewhere in Central America. In fact it's possible even a couple of these might be from a different Yucatan city or town.