I hope no one posted it before and I overlooked the post (if I did I am sorry in advance), but I recently found this website by the Austrian National Library where you can look at old postcards based on a map:
I was of course mostly fascinated by my immediate living and work addresses, but I thought maybe someone else also enjoys diving into the past a bit as there are also quite some places outside of Austria and Europe
Hereās a photo I love of the city where I was born, Pisa: https://akon.onb.ac.at/#id=AKON_AK074_437
No Leaning Tower in this one but itās interesting because all the bridges are different now - they were rebuilt after being destroyed in WWII.
And this is the main street of the city where I live now, Cagliari: https://akon.onb.ac.at/#id=AKON_AK107_355
As you can imagine, thereās a lot more traffic nowadays but the plan is to close again the central part of the road to build a promenade - less traffic, more people strolling along the sea
Wow
This is awesome!
Thank you for sharing @rabena_corvus !
I think you just earned a historical photocard from my hometown
PM me your address if you are interestedā¦
These kind of maps are great! I also created one to put all my postcards of churches and Christian buildings. For now I do not have many of them around the world but I have several hundred to add for France. I like to āwalkā from point to point to admire these different architectures.
I canāt stop looking for new places haha 
but itās interesting because all the bridges are different now - they were rebuilt after being destroyed in WWII.
but the plan is to close again the central part of the road to build a promenade - less traffic, more people strolling along the sea 
That is too kind, I will send you a PM! 