In 1926 Roald Amundsen's airship Norge, was on its way from Italy to Svalbard, stopped in Oslo, mooring at Ekeberg at a specially-constructed mast, the foundation of which can still be seen today at the north end of the park.
This was rejected, and the Labour party politician Rolf Hofmo, who had survived internment at the concentration camp of Sachsenhausen during the Second World War, proposed the idea of a free area for sport and other activities.
The park contains numerous works of art from Norwegian and international artists, among others, Salvador Dalí, Lynn Chadwick, Richard Hudson and Per Ung.
Among them Henrik Wergeland, Hans E. Kinck, and Peter Christen Asbjørnsen, who also wrote down the local folklore from the area, concerning the Ekeberg Troll, living inside the hill.
Hans Christian Andersen and Bjørnstjerne Bjørnson apparently established their friendship while admiring the view of the city.
Here it is stated that the surviving sailor Gustaf Johansen lived in "an old house at Egeberg" where he died after ramming Cthulhu head on with a fishing vessel.