Rose Monday
 

never heard of this before.......

"Rosenmontag (Rose Monday) is the highlight of the German "Karneval" (carnival), and is on the Shrove Monday before Ash Wednesday, the beginning of Lent.[1] The "Mardi Gras," though celebrated on Tuesday, is a similar event. Rosenmontag is celebrated in German-speaking countries, including Germany, East Belgium, Austria, and Switzerland, but most heavily in the "Hochburgen" (carnival strongholds), which include the Rhineland, especially in Cologne[2], Bonn, Düsseldorf [3], Aachen and Mainz.[4] In contrast to Germany, in Austria, the highlight of the carneval is not Rosenmontag, but Faschingsdienstag (Shrove Tuesday)."

From the pictures it looks like they have fun. :)

Rosenmontag in Deutschland: Putin als Tänzer, Brüderle als Straßenköter « DiePresse.com

German Carnival Peaks With Rose Monday Processions - SPIEGEL ONLINE