The "Babilonie" above the village, once a large moat and rampart system that served as a protective and refuge castle and, in the later Carolingian period, presumably as a seat of power and administration, bears witness to the settlement history of the village spanning several thousand years. According to archaeologists, metal and pottery finds date the first period of the castle to the pre-Roman Iron Age. Only a few traces of the original 12-hectare site remain.
Not far from the Babilonie is the "Kummerbrink", a former quarry that has been turned into a meeting place. Also worth seeing is a stone slab from 1723 attached to an old school, on which the wooden laws from the time of Prussian King Friedrich Wilhelm I are carved. Court days were held on this site, the Thingplatz, in the late Middle Ages. Obermehnen, one of the smallest districts in Lübbeck, is crossed by the Mühlenbach stream, which used to power up to twelve mill wheels. The last mill ceased operation in 1970. Idyllic corners along the stream and the view from the mountain into the valley are particularly charming.