The Church of Saint Nicholas stands in the Old Town of Vilnius and is an active Roman Catholic church. It was built in the fourteenth century and is first mentioned in writing in 1387. It was a center for German craftsmen and merchants along Vokiečių Street. The exterior is Brick Gothic, with two stocky buttresses with cut-off tops and a triangular pediment with niches. The belfry was built in the seventeenth century in the Baroque style.
Inside, four octahedral pillars support web and star vaults. The high altar painting shows St. Nicholas in a sixteenth-century silver setting, and a Gothic polychrome statue of St. Louis stands nearby.
From 1901 to 1939 it was the only church in Vilnius with Mass in Lithuanian. After the Second World War it served as a de facto cathedral, when the cathedral was closed.

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