Narrow Water Castle is a famous 16th-century tower house and bawn near Warrenpoint. In 1212, a keep was built on the site by Hugh de Lacy, first Earl of Ulster, to prevent river-borne attacks on Newry. In the 1560s, the tower house and bawn were built. It is a typical example of the tower houses built throughout Ireland from the 14th until the early 17th century. This kind of building, normally rectangular in plan and three or more storeys high, comprised a series of superimposed chambers, with stairs, closets and latrines skillfully contrived within the walls (which are 1.5 metres or five feet thick in places) or sometimes contained in projecting angle turrets. The original was destroyed in the 1641 Rebellion.
On 27 August 1979, 18 British Army soldiers were killed by a Provisional IRA ambush at Narrow Water Castle (see Narrow Water ambush). It was the greatest single loss of life for the British Army during The Troubles.
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.