This week, Patrick Moore from the BBC's Sky at Night visits the now redundant Equatorial Telescopes Buildings at Herstmonceux in Sussex. Built by a designer known for creating ship's interiors, the complex owes more to navigational design than to the modern era.

Sheffield's Parkhill estate will be the biggest structure ever listed in Britain, but should English Heritage be proposing such a move for the 1960s estate, which is regarded as run down even by its own residents? Architect Carolyn Steele investigates.

Plus a look at topiary, the art of hedge sculpture, including a giant chess set fashioned in Oxfordshire.
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