St. John's Church in Petersdorf dates from the 13th century. Its 64-metre-high steeple was used as a daymark by ships on the Fehmarn Belt and Sound, as it is visible for up to 20 miles at sea. The church and adjacent cemetery are surrounded by 64 lime trees. The altar triptych dating from the 14th century is considered a masterpiece of Gothic carving skill. The oldest artefact is the font of Gotland limestone. The church also contains a particularly valuable 15th century altar shrine.
References: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.