Bornholmertårnet
1961
The first listening tower is constructed near Nordfyret at Dueodde
The Danish Defence Intelligence Service’s radar and listening station at Dueodde was an important contribution to Danish defence and NATO during the Cold War. The radar station had a range deep into Eastern Europe.
1986
The listening station at Dueodde is upgraded with a 70-meter-tall listening tower
This is the listening tower that can be seen from a long distance today and that visitors to the museum can climb.
2012
The listening station at Dueodde is decommissioned
The listening station is later converted into a museum in 2015.