Belton House Grimsthorpe Castle Woolsthorpe Manor Burghley House
Gainsborough Lincoln Grimsby Grantham
Lincoln Cathedral Grimsthorpe Castle Tattershall Castle Lincoln Castle
RAF Cranwell RAF Grimsby RAF Digby RAF Coningsby
Gilkiches Fort Bull Sand Fort New Tavern Fort Haile Sand Fort
3 1 4 2
Skegness Sleaford Louth Lincoln
Boston Mablethorpe Grimsby Skegness