17 miles from Theddlethorpe All Saints Parish

The remains of a 13th-century hexagonal castle, birthplace in 1367 of the future King Henry IV, with adjacent earthworks. Besieged and taken by Cromwell's Parliamentarians in 1643.

25 miles from Theddlethorpe All Saints Parish

Built in 1877, this restored six storey mill with complete gear, sails and fantail still works today.

25 miles from Theddlethorpe All Saints Parish

Remains of a grammar school for church choristers, founded in the mid-15th century by Ralph, Lord Cromwell, the builder of nearby Tattershall Castle (National Trust).

29 miles from Theddlethorpe All Saints Parish

Thornton Abbey’s enormous and ornate fortified gatehouse is the largest and amongst the finest of all English Monastic gatehouses.

32 miles from Theddlethorpe All Saints Parish

Standing almost in the shadow of Lincoln cathedral, with sweeping views over the ancient city and the countryside beyond.

33 miles from Theddlethorpe All Saints Parish

A deserted medieval village, one of the best-preserved examples in England, clearly visible as a complex of grassy humps and bumps.