St. Peter's and St. Paul's Cathedral
Tallinn, Estonia · built 1841
St. Peter and St. Paul's Cathedral (Estonian: Peeter-Pauli katedraal) is the cathedral church of the Roman Catholic Diocese of Tallinn. It is situated on Vene street in the Old Town district of Tallinn, Estonia.
Cathedral data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).