Location: Cologne, Germany
Architect: Ernst Friedrich Zwirner
Year Completed: 1880
Construction of the Cologne Cathedral began in 1248, though it was not finished until 1880, which is quite understandable, since it features the world's largest church facade. Its size and position along the Rhine river make the Cathedral a landmark of Cologne, Germany. During World War II, the cathedral survived 70 hits from aerial bombings, with its two grand spires used as a navigation landmark by Allied pilots. It is actually Germany's most visited landmark, with more than 20,00 visitors a day coming to see the relics of the Three Kings.