Another map resource

[StainlessSteelCynic]

I don't recall seeing this particular mapping site before and I don't recall if it's been mentioned here before.
Called OpenStreetMap, it is, no surprise, a street directory style set of maps for most places in the world.
Lots of detail but obviously it's not going to be accurate for timelines before the 2000s. Quite useful for the additional info available in the menu tabs such as the transport grid, public cycleways and if you zoom in close enough, alleyways/walkways between buildings etc. etc.

For the link, I choose a particular location that will be familiar to all of you...
https://www.openstreetmap.org/#map=15/51.7401/18.0729

[kato13]

And it is open for use in commercial products as long as there is accreditation.

https://wiki.openstreetmap.org/wiki/..._credit_you.3F

[B.T.]

Great find,
they even show the railway tracks