Arco de Santa María is one of the 12 medieval gates of Burgos had during the middle ages. It was rebuilt by Charles V, Holy Roman Emperor during the 16th century after the local rulers of the city supported him during the Revolt of the Comuneros. On the facade of the arch appear people of importance to the city of Burgos and Castile, such as Diego Rodríguez Porcelos, the founder of the city, Jueces de Castilla Laín Calvo and Nuño Rasura, El Cid, Fernán González and Charles V himself.
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.