There are a few of these portal arrangements around the world as something of an art installation and to make people feel closer to each other. There was one between Dublin and New York which was ultimately scrapped as there were a minority of people on the Irish side trying to spread hate which was all a bit sub-optimal for the country’s reputation. Although the Dublin situation wasn’t exactly the spirit of global harmony they were going for, this one is linked to the rather glorious city of Lublin in Poland and hasn’t had the same issues.
I can’t be doing all that socialising, but there was a lady nearby who was fully engaged in the whole arrangement.
The Vilnius portal is located in front of Vilniaus rotušė, which is the Vilnius City Hall. It’s all rather exciting in many ways, almost like going back to 1998 and the excitement of the earliest webcams. There are plans for more of these to be installed and this seems like something that seems really quite positive in building bridges and all that, perhaps between cities which are already twinned in the more traditional way.