Peterborough (25), an English cathedral city, on the Nen, partly in Huntingdonshire and partly in Northamptonshire, on the edge of the Fen country, 76 m. N. of London; has an old town-hall, manufactures of farm implements, trade in malt and coal, and is a great railway centre; the cathedral is one of the finest in Britain, of very varied architecture, was restored and reopened afterwards in 1890.