Where is the largest stain glass in Europe?

The largest stained glass in Europe is located in York Minster, in York, England. The Great East Window of York Minster is the largest expanse of medieval stained glass in the world. It is approximately 24 metres (79 feet) high and 12 metres (39 feet) wide, and is composed of over 100,000 pieces of glass. It depicts scenes from the Bible and the lives of the saints.