Historic Scotland looks after a number of site museums. One of the gems is the Whithorn Priory Museum that contains material from the early Christian site at Whithorn (in south-west Scotland). The ‘stones’ are beautifully displayed alongside a series of informative panels and descriptions. (And the custodian on duty was extremely welcoming.)
The priory is reported to have been founded by St Ninian in the 5th century.
At the centre of the museum is the Monreith Cross, standing at 2.7 m. It dates to c. AD 800-1000.
Further details on the museum and surrounding sites can be found here.
One of the visitor activities is making your own decorated cross for a bookmark.