We’re quite positive that around half of the city’s residents don’t know where this charming old church is. It requires fairly good navigational skills and it's tricky to find the entrance, but it's definitely worth a visit.
This is the church of the not-so-big Lithuanian Lutheran community. If you're interested in anything at all, don't be afraid to ask! They're always willing to share information so you'll definitely get a detailed answer.
Ask a local to bring you here as it really is difficult to find.