one week a year the whole city of Cologne goes crazy. It´s Carneval time with party from thursday morning (Weiberfastnacht) until the following tuesday night when the "Nubbel" must burn. 6 nights and days of party.
I did 2 and half nights and day of it and it was a big big FUN!!
Cologne`s “fifth season”, world-famous as a colourful, joyous celebration, annually attracts around one million visitors into the city. The Three Mad Days are the end and climax of Cologne Carnival. The time of merrymaking in the streets is officially declared open at Alter Markt on the Thursday before the beginning of Lent. Pubs stay open till the early hours of the morning, and the spirit of Carnival reigns in the streets and public squares, in offices and at home, and above all in places for dancing and drinking.
I personally do not like to celebrate carnival but maybe you do.