At which festival do people in Germany wear colorful costumes and masks?

Question

Accepted Answer

on Rose Monday. Rosenmontag (Rose Monday) is the highlight of the German Carnival season, where people celebrate with colorful costumes, masks, and large street parades. This tradition is especially prominent in the Rhineland region, such as in Cologne, Mainz, and Düsseldorf.

Zu welchem Fest tragen Menschen in Deutschland bunte Kostüme und Masken?

Zu welchem Fest tragen Menschen in Deutschland bunte Kostüme und Masken?