Cubbie Roo's Castle, built about 1150, is one of the oldest castles in Scotland and was mentioned in the Orkneyinga Saga. It takes its name from Kolbein Hruga who was said to have lived there. In King Haakon's saga, it is mentioned that after the last Norse Earl of Orkney, Earl John, was murdered in Thurso, his killers fled to Wyre. They took refuge in the castle, which was so strong that the besiegers had to thrash out a deal with them to get them out.
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.