Vanis Kvabebi is a cave monastery in Samtskhe-Javakheti region of Georgia near Aspindza town and the more famous cave city of Vardzia. The complex dates from 8th century and consists of a defensive wall built in 1204 and a maze of tunnels running on several levels in the side of the mountain.
There are also two churches in the complex. A newer stone church that is in quite good shape stands near the top of the wall, and a smaller, domed church that clings to the rock on the level of the highest tunnels.
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.