I took some time to explore OpenStreetMap recently, getting a stronger idea of where different places in the city are and how they relate to each other. While you can filter out layers or use an app to get a simple and pretty view like other maps, I find it's useful to look around for something unexpected, right-click on it and query features.
I also learned where Thai Town and Koreatown are, any other historical Towns in the city beyond Chinatown?