Visaginas (About this sound pronunciation ) is Lithuania's youngest municipality, located on the north-eastern edge of the country. It was built as a town for workers engaged in the construction of the Ignalina Nuclear Power Plant. The vast majority of the town's population speaks Russian as a mother tongue. Originally the aerial view of Visaginas was designed to resemble a butterfly, however, after work on the nuclear power plant was cancelled, so was further construction of the town.