Kings Hill at Wrangle in Lincolnshire.
Motte and Bailet Castle - now only an earthworks but an impressive mound none the less. Accessible only by hopping over a gate. Pops made it over - couldn't make it back for some unknown reason
Bolingbroke Castle in Lincolnshire.
Birth place of Henry IV, it also saw significant action during the Civil War
Lincoln Castle and Cathedral
Played an important role during the civil war between King Stephen and Empress Matilda
Belvoir Castle in Lincolnshire
A pleasure castle built in the gothic romance style with fashion not defence the order of the day.
Warwick Castle
Home of the King Maker, the Earl of Warwick