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:House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.