Exploring the cultural highlight in the heart of the city, students follow in the footsteps of the powerful prince-archbishops historic residence through sumptuous State Rooms, Residenz gallery, a private passages into the Cathedral. Open to the public for the first time in 200 years, this UNESCO World Heritage site is a palace / cathedral complex that covers nearly 15,000 square meters, houses 2,000 exhibits of the sacred treasures of the Cathedral Museum, and covers a span of 1,300 years.