The places we look after are full of hidden treasures concealed under floorboards or behind bookcases, tucked away in attics or covered up by later decoration. Even items on show can still surprise us, as this selection of unexpected discoveries reveals.
The illegible handwriting of a war dairy had kept many secrets for years, but now it has been deciphered, at Coughton Court, Warwickshire.
The photo archive at Dudmaston in Shropshire has been found to date from the 1850s, giving us a fascinating glimpse into 19th-century life.
The foundations of a haunted house were revealed in 2014, lying just 50 yards from Hinton Ampner in Hampshire.
A new feature uncovered at Mottisfont reveals its sacred medieval history - a stone basin that dates back to the 12th century.
At Mottisfont, another layer of its 800-year history has been uncovered. Find out about the wallpaper that has an intriguing story to tell.
Find out how an old shoe found at Wimpole Hall, Cambridgeshire, can protect you from evil. It's just one of our unexpected discoveries...
An original painting by J.M.W Turner of Winchester City Mill has been identified by staff at the site in Hampshire, having been housed at London's Tate Gallery for more than a century.
Several places we look after are rumoured to be happy hunting grounds for an assortment of ghosts and ghouls. Are you and the kids brave enough to explore?
Discover more about the identification steps we took to find out if Buckland Abbey painting was a Rembrandt.
These hiding places were created to hide priests during a time when Catholics were imprisoned, tortured and killed. They're craftily disguised in some of our houses to baffle search parties.