Begun in 1248, the construction of this Gothic masterpiece took place in several stages and was not completed until 1880.
At about 26,000 square feet, the Cologne Cathedral is large enough to hold over 20,000 people.
In addition to being the home to the Three Wise Men, the Cologne Cathedral features breathtaking stained-glass windows.
Cologne Cathedral was left almost unscathed during the Allied bombing raids that flattened much of the rest of the city during second world war.
Cathedral guides argue that this is proof of intervention by the Almighty.
However it is more likely that the pilots used the spires as a landmark while bombing the city.