Situated down from the castle precinct, the Vorburg or Front Building was restored and converted for use as exhibition rooms between 1997 and 2000. As a museum, forum and archive for the history of nature conservation in Germany, it is now open to visitors the whole year round. In 2008 it was decided to restore the historical arrival onto the ground. Today the Vorburg serve as main gate with cash desk, a castle shop and a bistro.