Niguliste church in Tallinn

St Nicholas church (Niguliste kirik) Tallinn

Short info about Nigulist kirik from Wikipedia

St. Nicholas Church (EstonianNiguliste kirik) is a medieval former church in TallinnEstonia. It was dedicated to Saint Nicholas, the patron of the fishermen and sailors. Originally built in the 13th century, it was partially destroyed in SovietBombing of Tallinn in World War II. It has since been restored and today houses a branch of the Art Museum of Estonia, focusing mainly on ecclesiastical art from the Middle Ages onward. The former church is also used as a concert hall” for more go to the source

As St. Nicholas’ Church is used also as a museum you can find the museum link also useful