Aachen Cathedral, Aachen Germany - medieval Romanesque style - construction on the chapel begun by Charlemagne around 792 making this the oldest cathedral in Northern Europe - during the Middle Ages, known as the "Royal Church of St. Mary at Aachen".
This beautiful stained glass is from the Aachen Cathedral in Aachen, Germany. It is a Roman Catholic Church. The link takes you to the photgrapher's website where he or she explains the technical details of the photograph.
Throne of Charlemagne and the subsequent German Kings in Aachen Cathedral. Charlemagne's court in Aachen was the centre of the cultural revival sometimes referred to as the "Carolingian Renaissance". My GGG grandfather.