Interior of Segovia Cathedral, Spain - The Cathedral of Santa Maria was started in 1525 and construction was finished in 1768. It occupies the highest point of the city. This is the last Gothic church built in Spain. The style is late Gothic and it replaced the old Romanesque Cathedral after it was destroyed in a fire during the uprising of the Comuneros in 1520.
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".