Work underway on 600-year-old stained glass windows at York Minster
Work has started to protect 600-year-old stained glass windows at York Minster, as part of an £11 million renovation scheme.
It is part of an 11-year restoration project to preserve parts of the cathedral and to add environmental protective glazing to more than 70 of its unprotected windows.
Dating from the early 1400s, the windows are about 70ft (21m) from the ground.
Conservation Manager Nick Teed explains the damage to the medieval windows.