Fun Facts Fun Fact: The French Church That Was Once the World’s Biggest Posted by Adam (Neko Random) on April 18, 2023April 17, 2023 Cluny Abbey in Burgundy France was the largest church in the world until the completion of Rome’s St. Peter’s Basilica in the early 17th century. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like this:Like Loading… Related