`If Walls Could Talk` discovers the mysteries lurking beneath homes` surfaces...and puts a price on history. The award-winning series profiles homeowners from across the country who renovate their historic homes and uncover unusual stories and valuable objects along the way. From century-old diaries to rare coins to even an unopened bank vault, these unexpected discoveries are a lesson in history for thrilled homeowners. Selected homeowners also get the shock of a lifetime when our expert appraiser drops in to tell them that what they found is worth a fortune!