Norway, Oslo, Stained glass window of Christs crucifixion.

Norway, Oslo, Stained glass window of Christs crucifixion.

Iceland, Reykjavik, Glass front exterior of Harpa Concert Hall and Conference Centre.

Iceland, Reykjavik, Glass front exterior of Harpa Concert Hall and Conference Centre.

Iceland, Reykjavik, Glass front exterior of Harpa Concert Hall and Conference Centre.

England, London, Southwark, The Shard, London Bridge Street.

Italy, Sicily, Cefalu, Piazza Duomo, Stained glass window in Cefalu Cathedral.

Detail of window with pale blue painted frame and frost patterns decorating the panes.