Lembecksburg, Circular rampart in Borgsum, Germany
Lembecksburg is a circular rampart near Borgsum, on the island of Föhr in northern Germany, with a diameter of about 95 meters and walls reaching 8 to 10 meters in height. The interior holds archaeological remains of settlements uncovered during excavations.
Despite earlier beliefs that the site was medieval, recent investigations place its construction in the Roman Imperial period. Pottery finds from the Iron Age show the location was already in use before Frisians settled the area in the 7th century.
Inside the enclosure, traces of four sod houses were found arranged in a radial pattern near the walls, with their openings facing the central area. This layout gives a clear sense of how people organized daily life within the structure.
The southern entrance is the most accessible point to reach the interior of the enclosure. To the north, the ground gives way to marshland, so sturdy footwear is a good idea, especially after rain.
One of the more surprising aspects of the site is that the rampart itself was built using layers of stacked turf rather than stone or timber. This construction method is rare in the region and helps explain how the walls have held their shape for so long.
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