Dieveniškės is a town in the Vilnius County of Lithuania, about 6 kilometres from the Belarusian border in the so-called Dieveniškės appendix. It is surrounded by the Dieveniškės Regional Park.
Wikipedia https://en.wikipedia.org/wiki/Dieveniškės
Coordinates 54°11'38.597" N 25°37'33.258" E