What do the ancient Romans have to do with Carnival? What role does the number 11 play? We dig deep into the roots of the rituals of the Cologne Carnival.

"The Art and Museum Library is an inexhaustible source of knowledge and inspiration," the 92-year-old artist said ... "As a citizen of Cologne, I am proud that the city has this rich treasure ...

The song is a musical declaration of love from a group of passionate residents of Cologne: the rapper Mo-Torres, the band Cat Ballou and soccer idol Lukas Podolski. The 31-year-old Podolski supplied ...