it was very much worth a look. Free entry but donations welcome and very friendly and informative staff. It does not look muck from the outside but inside plays host to a massive natural history exhibitions, ranging from bronze age artifacts and a very impressive 'in the forest' exhibition where you feel like your in the heart of the wild forests and there's loads of information about the natural area of Derbyshire.
the house itself is well worth a visit, left in a state of disrepair and totally original, surrounded by lovely parkland. The restaurant serves lovely food made with locally sourced ingredients a highly recommended afternoon out.