Silkeborg Gymnasium is Denmark’s biggest sixth-form college Silkeborg Gymnasium is situated in Silkeborg in the middle of Jutland, about 40 km from Denmark’s second biggest town, Aarhus. Silkeborg Gymnasium is Denmark’s biggest sixth-form college; we have approximately 1550 pupils and nearly 175 employees, 150 of whom are teachers. The pupils start in the first year, when they are 16 years old, and they are about 19 years old by the time they finish. The school leadership includes the principal and six assistant principals. The School also has five careers/study advisors and two reading supervisors.