Norwich is a city on the River Wensum in England. It is the regional administrative centre and county town of Norfolk. Norwich is one of the top five retail destinations in the UK. The Castle Mall, a shopping centre designed by local practice Lambert, Scott & Innes and opened in 1993, presents an ingenious solution to the problem of sensitively accommodating new retail space in a historic city-centre environment. A second shopping mall, Intu Chapelfield (formally known as Chapelfield) was opened in 2005 on the site of a closed Caleys chocolate factory. To the north of the city centre is the Anglia Square shopping centre.