It seems that Christmas Valkenburg all decorated with festive lights. Black Market, which opens here every year for Christmas from mid-November until 23 December - a unique feature of the city. It is located in a velvet Grote - a maze of underground passages of the XII century, which lies beneath the ruins of the castle on a hill in Valkenburg. Valkenburg - the city of cyclists. This is not only a great place for cycling tours: it held the world championship road cycling (UCI Road World Championships), also visited the city of finish two different stages of the Tour de France bicycle races.