The military Fort Venini in Oga was erected in the defense of the main alpine passes of the Alta Valtellina, and was built between 1908 and 1914 in the village of Dossaccio. The fort’s structure is decidedly massive and includes four armoured domes in steel where there were the cannons, that thanks to the particular orientation east-west, could rotate and defend all the valleys and the passes potentially subject to danger from the enemy.
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Kakesbeck is one of the largest medieval fortifications in Münsterland and the oldest castle in Lüdinghausen. The imposingly grown complex originated in 1120 as a motte, a small hilltop tower castle. After numerous changes of ownership, the castle was extended onto two islands, but it was not until the 14th century that it underwent significant alterations and extensions under the von Oer family. The estate experienced its heyday in the middle of the 18th century, when it covered an area of almost one square kilometre and consisted of five further outer castles in addition to the core castle, which were secured by ramparts and moats.
The well-maintained condition of the castle today is thanks to the late Wilfried Grewing, the former lord of the castle. The foundation named after him has been particularly committed to preserving the property since 2020.