What was a big Bertha for world war 2?

Big Bertha was a super-heavy artillery piece developed by Germany during World War I, but its name is sometimes associated with similar heavy artillery used in World War II. The term refers to massive siege guns designed for long-range bombardment. In WWII, the Germans utilized large-caliber artillery pieces, including the "Dora" and other railway guns, to target fortifications and cities, demonstrating the destructive power of heavy artillery in warfare. However, the original Big Bertha itself was not actively used in WWII.