I'd love to see where all the city utility lines go. For example, roads, water/sewage, electricity and internet. Does one exists where you can enable them as layers on a map?
I would love to see all those things myself. Part of my job this past week was inquiring with local jurisdictions about utilities to request utility atlases and other existing condition reports. Unfortunately, this info can be hard to find, inaccurate and inaccessible. There are many pros and cons for showing/hiding utility data etc. <p>
If you're interested in getting started with roads, Local GIS shapefiles and tiger databases can be found for much of the US. Not too familiar globally.
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Downloading a database from the following site and opening with QGIS or similar might be something to start with:
https://www.census.gov/geographies/mapping-files/time-series...
In the US, this is typically handled by counties and municipalities at the local government level.
Look for "whatever place GIS" or give your town hall a call. They will often be able to provide this (if they have such a department) either in an online map viewer (usually ESRI web maps) or as GIS shapefiles that you can open with the FOSS tool QGIS.
If you find what you're looking for but need help viewing it, let me know here and I'll try to help.