Although much of the home and its original furniture and fabrics are still intact, the Old Master paintings that once decorated the walls are gone. Sir Robert Walpole sold Houghton’s vast art collection to Catherine the Great in 1779. These paintings typically reside in St. Petersburg’s State Hermitage Museum, but in 2013, they were loaned to Houghton for a special exhibition, which CyArk scanned and digitally captured using a Faro S120. The scans were used to create an iPad application that allows viewers to compare what is currently on display at Houghton Hall with the estate’s original decor. 