Gollenberg is a municipality in the Havelland district, in Brandenburg, Germany consisting of Schönholz-Neuwerder, Stölln and Ohnewitz.
The municipality is named after the Gollenberg near Stölln and was created December 31, 2002 when the municipalities of Schönholz-Neuwerder and Stölln were merged.
Aviation pioneer Otto Lilienthal (1848–1896) crashed his glider here and died later.
On October 23, 1989, an Ilyushin Il-62 jet airliner was intentionally landed on the 900m short grass airfield of Stölln/Rhinow in a risky maneuver.
The jet, donated by the GDR's airline Interflug and nicknamed "Lady Agnes" after Lilienthal's wife,[4][5] is now used for weddings.