A 1:50 scale concrete model of the Mohne Dam (Germany) located in the woodland to the south of Barnes Wallis Way, Bricket Wood, London. The model was built in the Second World War for Barnes Wallis to test the required wait of explosives required during the "Dambusters" raid. The model is a Scheduled Monument. https://historicengland.org.uk/listing/the-list/list-entry/1020749 634 photos taken in January 2026 with a Sony a7R V and processed in Agisoft Metashape.