sconce
small protective fortification, such as an earthwork
Crown Redoubt
was built for the defenses against possible Danish attack on Gothenburg from the south and was introduced in 1698 and was fitted with 23 canons.
Lion Redoubt
was built-in 1687 by Erik Dahlbergh as part of the defenses against possible Danish attack on Gothenburg from the south
Blaker Fortress
former defense facility in the village of Blaker, Norway