St Mary’s Church

St. Mary's Church, or formally the Basilica of the Assumption of the Blessed Virgin Mary, is a Brick Gothic Catholic church located in central Gdańsk, Poland. With its volume between 185,000 m3 and 190,000 m3 it is currently one of the two or three largest brick churches in the world. Only San Petronio Basilica in Bologna, comprising 258,000 m3 is larger, Munich Frauenkirche and Ulm Minster also comprise 185,000 to 190,000 m3.

Between 1536 and 1572 St. Mary's Church was used for Catholic and Lutheran services simultaneously. From the 16th century until 1945 it was the second largest Lutheran church in the world.

Source: Wikipedia