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.
It is thought that as many as 1,000 wooden motte and bailey castles were constructed by the Normans in England. Model of a typical motte and bailey castle, showing the artificial mound surmounted by a wooden keep (the motte) and the fenced enclosure surrounded by a ditch (the bailey).Â© Wikipedia.t is thought that as many as 1,000 wooden motte and bailey castles were constructed by the Normans in England. Model of a typical motte and bailey castle, showing the artificial mound surmounted by a wooden keep (the motte) and the fenced enclosure surrounded by a ditch (the bailey). Â© Wikipedia.