12 Iconic Buildings, 1,000 Years of History. 1. Norwich Castle 1067 - 1075 Architecturally the most ambitious secular Norman building in Europe. Open: Mon - Sat 10am-4.30pm, Sun 1pm-4.30pm Tel: 01603 493625 - 01603 493648 Web: www.museums.norfolk.gov.uk 2. Norwich Cathedral 1096 - `1145 An iconic Norman cathedral and one of the most complete major Romanesque buildings in Europe. Open: 7.30am-6pm daily subject to special Cathedral services. Tel: 01603 218300 Web: www.cathedral.org.uk3 3. The Assembly House 1754 - 1755 One of the most glorious examples of Georgian assembly rooms architecture in the country. Open: Mon-Sat 8.30 - 7.30pm Sund...