Single (music) - Types. 1  Singles have been issued in various formats, including 7-inch (18 cm), 10-inch (25 cm), and 12-inch (30 cm) vinyl discs (usually playing at 45 rpm); 10-inch (25-cm) shellac discs (playing at 78 rpm); cassette, 8 and 12 cm (3- and 5-inch) CD singles and 7-inch (18 cm) plastic flexi discs.
Conwy Castle. Conwy Castle, a World Heritage Site, is a magnificent fortress in North Wales. Built by James Saint George for King Edward I, it has towered over the medieval town of Conwy ever since.onwy Castle. Conwy Castle, a World Heritage Site, is a magnificent fortress in North Wales. Built by James Saint George for King Edward I, it has towered over the medieval town of Conwy ever since.
Carrickfergus-Castle-w320x2-v3.jpg. There are few buildings in Ireland with such long, well chronicled and fascinating histories as Carrickfergus Castle. John de Courcy started building the castle in the twelfth century after arriving from Dublin determined to establish for himself the earldom of Ulster.arrickfergus Castle first appears in the official English records in 1210 when the notorious King John laid siege to and took control of Ulsterâs premier strategic garrison. De Lacy fled the castle before the arrival of John, and the castle came under the control of a constable.