St Vigeans, close to Arbroath, was the centre of a royal estate in the Early Middle Ages, and was of religious importance as a monastery founded in the 8th century.
The present-day St Vigeans Church was built in the 12th century, on a 40-foot (12 m) mound.
The museum displays 38 carved stones which formerly stood upon the old church mound.
Among the stones on display is the 9th-century Drosten Stone, a flat rectangular slab with a cross carved on one side and Pictish symbols on the other, and also bearing a Pictish inscription in Latin script.
[1] The museum is managed by Historic Scotland and is housed in two adjoining sandstone cottages close to the church.