 On 29 June 1954 the Schullandheimverein (association for the construction of a school retreat center) of Fichte Gymnasium in Krefeld bought the Burg for only 80,000 DM (about $360,000 today).They then began to construct the retreat center.Today, Burg Bischofstein is a designated and protected historical spot; not as an 800-year-old castle, but as an example of the architectural style of the 1930s.