In 1913, the Berlin Observatory moved again after 78 years in its second home to Babelsberg (since then it is often referred to as Babelsberg Observatory). The Observatory in Kreuzberg was cleared out and torn down in August 1913. The sale of the land covered the cost of the construction of the new building (1.1 million Goldmarks and the purchase of new instruments to the sum of 450.000 Goldmarks). The land itself on the Babelsberg in the Schlosspark cost the Royal establishment nothing. The hill giving the area its name is situated about three kilometers north-east of the Telegrafenberg.