Oliwa Cathedral

Oliwa Cathedral, formally known as the Archcathedral Basilica of the Holy Trinity, is a Roman Catholic church in the district of Oliwa, in Gdańsk, Poland. Completed in the late 14th century in a Brick Gothic style, the present church comprises Mannerist-Baroque architectural elements. It has been one of Poland's protected Historical Monuments since 2017, due to its historical significance and the great organ inside.

Source: Wikipedia (CC BY-SA 4.0) — https://en.wikipedia.org/wiki/Oliwa_Cathedral