The Church of St. Michael in Synkavichy is a Gothic church was built in 16th century. It is one of the first fortified churches in Grand Duchy of Lithuania. In 1880-1881, the temple was significantly reconstructed. In 1926, it was rebuilt as a Catholic church. In 1988-1990, it become Orthodox. This site was added to the UNESCO World Heritage Tentative List in 2004.
The defensive system of the church consists of four towers and loopholes placed under the vaults. The interior of the church looks like a hall, its cross-shaped vaults with nervuses rest on six pillars. With the purpose to improve the defence capacity the windows are raised high above the ground.
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.