Norwich, one of the largest settlements in England during the Norman era. Norwich is home to the University of East Anglia, and is the county's main business and culture centre. Other principal towns include the port-town of King's Lynn and the seaside resort and Broads gateway town of Great Yarmouth. Based on the 2011 Census the county's largest centres of population are: Norwich (213,166), Great Yarmouth (63,434), King's Lynn (46,093), Thetford (24,883), Dereham (20,651), Wymondham (13,587), North Walsham (12,463), Attleborough (10,549), Downham Market (9,994), Diss (9,829), Fakenham (8,285), Cromer (7,749), Sheringham (7,367) and Swaffham (7,258). There are also several smaller market towns: Aylsham (6,016), Harleston (4,458) and Holt (3,810). Much of the county remains rural in nature and Norfolk is believed to have around 200 lost settlements which have been largely or totally depopulated since the medieval period. These include places lost to coastal erosion, agricultural enclosure, depopulation and the establishment of the Stanford Training Area in 1940. Transport Roads Norfolk is one of the few counties in England that does not have a motorway. The A11 connects Norfolk to Cambridge and London, via the M11. From the west, there are only two routes from Norfolk that provide a direct link with the A1: the A47 to the East Midlands and Birmingham, via Peterborough, and the A17 to the East Midlands, via Lincolnshire. These two routes meet at King's Lynn, which is also the starting point of the A10, providing West Norfolk with a direct link with London, via Ely, Cambridge and Hertford. Railways There are two main railway lines that link Norfolk with London. The Great Eastern Main Line hosts inter-city services from Norwich to Liverpool Street, via Ipswich and Colchester. The Fen line provides regular services between King's Lynn and King's Cross, via Ely and Cambridge. In addition, the Breckland line provides access from Norwich and Thetford to destinations to the west including Peterborough, Nottingham, Sheffield, Manchester and Liverpool. Air Norwich International Airport provides flights to various European destinations, including a link to Amsterdam which offers onward flights throughout the world. Dialect, accent and nickname The Norfolk dialect is also known as "Broad Norfolk", although over the modern age much of the vocabulary and many of the phrases have died out due to a number of factors, such as radio, TV and people from other parts of the country coming to Norfolk. As a result, the speech of