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.
Carew Castle is a castle in the civil parish of Carew in the Welsh county of Pembrokeshire. The famous Carew family take their name from the place, and still own the castle, although it is leased to the Pembrokeshire Coast National Park, which administers the site.he Norman castle has its origins in a stone keep built by Gerald de Windsor around the year 1100. Gerald was made castellan of Pembroke Castle by Arnulf of Montgomery in the first Norman invasion of Pembrokeshire.