Have you ever found an old map of your own street? What changed the most?

I went down a rabbit hole with my city's old insurance maps (the ones that mark every building's material and use) and found that my flat sits where a small brewery used to be in the 1890s. The street names were mostly the same but the whole block had been rebuilt twice. If you've looked up historic maps of where you live, what surprised you most, and where did you find them?