The idea is to have live video feeds between european cities with screens and cameras in the street.
I can think of 2 kinds of display:
One picture is worth a thousand words so I attached one with this project.
And a video is even better ;-) but I can't put a URL in this message so to watch a related video, look for "SNCF - L'europe c'est la porte a cote" in your favorite serach engine, this is an ad from the french rail company with a similar concept,
Placing permanent screens on the street involves budgets, votes, inter-cities communication, red tape. This can be very complicated, so I thought of 2 alternatives ideas that can be simpler to develop in a first time:
It would be much simpler to setup, it could be moved between places, it wouldn't have to be permanently in the same building. There could be a phone with it so people would communicate.
We could put some in train stations for example, so instead of waiting, watching your phone, travelers could talk to other europeans?
The idea is to have a few vans travelling accross Europe each containing a a couple of screens with cameras, mobile versions of the original idea. The van would stop anywhere, plug somewhere to get electricty and have a 4G link to stream videos.
A such fleet of vehicules coud be used in a lot of different cases : to incite people to vote for european elections, to show potential Erasmus students other European campuses, etc.
The idea would be to make most of the components libre/open source.
I set up a project on HackAday where some technical details can be discussed search "hackaday window-on-the-world" to find it
Do not hesitate to contact me here or to leave comments on the HackAday website.