The museum of Kihnu was established in 1974 into the old schoolhouse. Expositions are divided between four rooms. Two of them are dedicated to the everyday life of the island through centuries: tools, clothes, handicrafts, furniture. The other two are dedicated to the local representatives of naïve art and to other famous men from Kihnu: Theodor Saar, a researcher in the studies of local lore; Enn Uuetoa, a captain and Peeter Rooslaid, a silversmith. All in all the funds of the museum include 700 items. The museum has also a collection of paintings by naivist painters of Kihnu origin and many works by the most famous painter Jaan Oad.
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.