Osterley Park House was entirely redesigned by architect Robert Adam over a period of twenty years beginning in 1761 on behalf of the Childs family. Although the the house is not entirely full of artifacts, it is one of the most sumptuous that I have visited. The gardens can be found here and the flowers here. Admission times, prices and further information can be found here.
Unfortunately the upstairs rooms were closed during my visit, but here are the downstairs rooms. The lighting was little dull in places, so it has been raised a little.