1. The Conwy Castle (since 1986), located in the former principality of Gwynedd (North Wales), is an extremely well-preserved monument and an example of the colonization and defence works carried out throughout the reign of Edward I (1272-1307) and the military architecture of the time.
2. The Giants Causeway (since 1986) lies at the foot of the basalt cliffs along the sea coast on the edge of the Antrim plateau in Northern Ireland. It is made of some 40,000 massive black basalt columns sticking out of the sea. The dramatic sight has inspired legends of Giants striding over the sea to Scotland.
3. Westminster Palace (since 1987), rebuilt from the 1840 on the site of importante medieval remains, is a fine exemple of neo-Gothic architecture. The site - which also comprises the small medieval Church of Saint Margaret and Westminster Abbey, where all the sovereigns since the 11th century have been crowned - is of a great historic and symbolic significance.
